| 单词 | expected value |
| 例句 | An understanding of expected values is helpful in analyzing most casino games, as well as the lesser- known game of chuck-a-luck which is played at carnivals in the Midwest and England. Innumeracy: Mathematical Illiteracy and Its Consequences 1988-01-01T00:00:00Z The expected value of a quantity is simply the average of its values weighted according to their probabilities. Innumeracy: Mathematical Illiteracy and Its Consequences 1988-01-01T00:00:00Z The expected value of being a Christian would then be 0 x ∞, and that was gibberish. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z Given the expected value of our personal data, the sites have every incentive to prevent you from finding a steady partner so you will keep feeding them information. What does OKCupid want? 2013-02-16T17:00:00Z That means there will be a lot of irrational bets, creating opportunities for “positive expected value” bets—meaning that on average, your bet should turn a profit. How to Turn a Profit on Preakness Bets 2014-05-16T04:00:00Z The ideas I talk about in the book — like linearity, expected value, correlation, formalism — are not “baby” ideas, they’re really deep ideas that people worked very hard to create. In 'How Not to Be Wrong' Jordan Ellenberg makes math meaningful 2014-06-18T04:00:00Z As Srikanth Sastry, a software engineer for Google Flights, recently told an online forum, “The expected value of waiting is negative.” The most frequently asked travel questions answered 2015-08-06T04:00:00Z No matter how Ephron felt about technology, though, she knew it was the wave of the future and invested wisely, doubling the expected value of her estate with investments in Apple, Google, and Amazon. 8 fascinating facts about Nora Ephron 2021-06-14T04:00:00Z "We understand that signaling much more than this has no expected value given so much uncertainty that exists, both globally and locally," he said. Brazil's cenbank chief says no point in signaling steps beyond Jan meeting 2023-11-07T05:00:00Z The researchers found that this shift to the surebet occurred mostly for the choices near the boundary where the expected value of the lottery was only slightly higher than the value of the surebet. Scientists explain how the brain encodes lottery values 2023-10-19T04:00:00Z "If I really think that I should be trying to maximize expected values, that probably implies substantially riskier strategies than what seems intuitively right," he said in the June 4, 2020, podcast. Who is Sam Bankman-Fried, whose fraud trial starts this week? 2023-10-02T04:00:00Z In other words, you can calculate an expected value. Information Theory Finds the Best Wordle Starting Words 2023-04-28T04:00:00Z A stronger 70% majority of analysts, 57 of 82, expected value stocks to outperform growth stocks this year. POLL Global stocks to correct in short term as inflation weighs 2023-02-23T05:00:00Z "As the stock price hits a floor or expected value for short sellers, they will start trading positions to realize their profits. ... We haven't seen that in Tesla yet," he said. Tesla short sellers pile on pressure after most profitable trade in 2022 2023-01-06T05:00:00Z This is because the expected value of the lotteries that had much higher potential values than the surebet were still higher even after the negative shift from the FOF silencing. Scientists explain how the brain encodes lottery values 2023-10-19T04:00:00Z There was significant uncertainty on whether the resources for debt repayment could generate the expected value, it said, creating the differences between the group and its creditors on the terms of the debt restructuring plan. Evergrande chairman says 2023 crucial for home delivery, debt repayment 2023-01-03T05:00:00Z From this, Sanderson checked which second color pattern can emerge for all possible subsequent inputs and thus calculated the expected value for the entropy of the second input word. Information Theory Finds the Best Wordle Starting Words 2023-04-28T04:00:00Z That might well outweigh the expected value of the remote possibility of this or that existential risk. Climate reparations: It's the right thing to do — and will create a better world for everyone 2022-12-31T05:00:00Z I want to differentiate here expected value or worth, or something like that, from security. Transcript of Sam Bankman-Fried’s Interview at the DealBook Summit 2022-12-01T05:00:00Z But figures from one in-store payment company revealed that only half of the expected value had been redeemed. £400 energy support vouchers going unclaimed 2022-10-30T04:00:00Z This is the expected value and is independent of the body's mass. College Physics for AP Courses 2015-08-12T00:00:00Z Substituting the ion concentrations into the Kw expression confirms this calculation, resulting in the expected value: Chemistry 2019-02-14T00:00:00Z The expected value of this formula for the geometric will be different from this version of the distribution. Introductory Business Statistics 2017-11-29T00:00:00Z At the 5 percent significance level, perform a hypothesis test to determine if the observed number of businesses that recycle one commodity follows the uniform distribution of the expected values. High School Statistics 2020-03-27T00:00:00Z In words, what does the expected value in this example represent? Introductory Statistics 2013-09-19T00:00:00Z Uncertainty is a quantitative measure of how much your measured values deviate from a standard or expected value. College Physics for AP Courses 2015-08-12T00:00:00Z Another important application in probability that can involve improper double integrals is the calculation of expected values. Calculus, Volume 3 2016-03-30T00:00:00Z Because this approach acts as if there were a single experiment the variance that exists in the parameter estimate is larger than the variance associated with the expected value approach. Introductory Business Statistics 2017-11-29T00:00:00Z The observed values are the data values, and the expected values are the values you would expect to get if the null hypothesis were true. High School Statistics 2020-03-27T00:00:00Z In a test of homogeneity, what must be true about the expected value of each cell? Introductory Statistics 2013-09-19T00:00:00Z “What’s the expected value?” he often asks co-workers, before assigning numbers to each possible outcome: A good result has positive EV; a bad one, negative EV. A Crypto Emperor’s Vision: No Pants, His Rules 2022-05-14T04:00:00Z This means that the expected values of the two random events are the average waiting time and the average dining time, respectively. Calculus, Volume 3 2016-03-30T00:00:00Z Is there a difference in the expected value if p and q reverse roles? Introductory Business Statistics 2017-11-29T00:00:00Z To run the test, put the observed values—the data—into a first list and the expected values—the values you expect if the null hypothesis is true—into a second list. High School Statistics 2020-03-27T00:00:00Z The test compares observed values to expected values. Introductory Statistics 2013-09-19T00:00:00Z A few days after his arrival, he sent a Slack message to his colleagues in California: The firm was losing millions of dollars in expected value by staying in the United States. A Crypto Emperor’s Vision: No Pants, His Rules 2022-05-14T04:00:00Z The complexity of the case could center on challenges around determining how much above the expected value of a transfer a player is worth. Juventus turmoil: Raided by police and struggling in Serie A 2021-11-28T05:00:00Z The expected value of the mean of the sample means will equal the population mean. Introductory Business Statistics 2017-11-29T00:00:00Z To run the test, put the observed values—the data—into a first list and the expected values—the values you expect if the null hypothesis is true—into a second list. High School Statistics 2020-03-27T00:00:00Z Each observation or cell category must have an expected value of at least five. Introductory Statistics 2013-09-19T00:00:00Z WFS will pay 2 million euros per year to use around 12,200 square metres for air-freight activities including merchandise storage and handling, Aena said in a statement, some 360% above the expected value. Spain's Aena opens bidding for new Madrid airport logistics hub 2021-10-08T04:00:00Z "Also, it is unclear whether the deviation represents new physics or a theoretical miscalculation; about half a dozen groups of theorists are calculating the expected value and theoretical uncertainties cloud the significance of the discrepancy." New physics or statistical fluke? Not all physicists are buying the muon mystery 2021-04-10T04:00:00Z The first approach wishes to measure the expected mean value of y from a specific change in the value of x: this specific value implies the expected value. Introductory Business Statistics 2017-11-29T00:00:00Z Details elsewhere in the filing reveal that those figures include the expected value of stock awards on the day they were granted, millions of dollars that disappeared with the company’s abysmal 2020 financial performance. Most Alaska Air executives’ pay in 2020 cut by massive airline downturn 2021-03-29T04:00:00Z In a goodness-of-fit test, the expected values are the values we would expect if the null hypothesis were true. Introductory Statistics 2013-09-19T00:00:00Z Dr. Gagnon estimates that as a result of these forces, the dollar was 10 to 20 percent above its expected value in 2019, probably costing hundreds of thousands of manufacturing jobs. How Can Biden Bring Back Manufacturing Jobs? Weaken the Dollar 2021-03-01T05:00:00Z “The lottery is not a good investment just because the expected value of a ticket is greater than the cost, and it doesn’t improve your odds of winning,” explains Rotblut. How you win from losing this week’s big lotteries 2021-01-23T05:00:00Z To avoid confusion, the first case where we are asking for the expected value of the mean of the estimated y, is called a confidence interval as we have named this concept before. Introductory Business Statistics 2017-11-29T00:00:00Z Lovell said that this is the first year African Americans were not stopped at a disparate rate, a calculation based on a “disparity index” the bureau uses to estimate expected values. Black drivers stopped a disproportionate rate in Portland 2020-11-27T05:00:00Z The expected value of each cell must be at least five. Introductory Statistics 2013-09-19T00:00:00Z If you take only one thing away from this column, I want you to remember this: The expected value of covid-19 prevention has never been higher. Opinion | The vital fine print on the new coronavirus vaccine 2020-11-09T05:00:00Z I’ve often said the Mariners would have to pay 20 percent over the expected value to sign a top free agent. Mariners mailbag: Analyzing the current state of the roster, free agents to watch and more 2020-09-26T04:00:00Z There, as the number of experiments increased, the distribution narrowed and the confidence interval became tighter around the expected value of the mean. Introductory Business Statistics 2017-11-29T00:00:00Z Muonic hydrogen was used to determine a key property of the proton known as the charge radius, but the value obtained was about seven standard deviations away from the expected value at the time. Exotic helium atom lit up 2020-05-05T04:00:00Z You should not play this game to win money because the expected value indicates an expected average loss. Introductory Statistics 2013-09-19T00:00:00Z A statistician would make an expected value calculation, and determine funding accordingly, but the country is far from rational. Responses to “The Cancer Industry: Hype vs. Reality” 2020-02-23T05:00:00Z Writers in outlets from Forbes to Money.com have claimed that when the Powerball winnings reach a certain threshold, the expected value — the payout times the probability of winning — exceeds the price of the ticket. Perspective | Five myths about the lottery 2019-12-27T05:00:00Z The confidence interval, measuring the expected value of the dependent variable, is smaller than the prediction interval for the same level of confidence. Introductory Business Statistics 2017-11-29T00:00:00Z The expected value is up from the $7.1 billion in its last private funding round in August. Slack’s stock market debut may value the workplace chat app at $17 billion 2019-06-12T04:00:00Z At the 5% significance level, perform a hypothesis test to determine if the observed number of businesses that recycle one commodity follows the uniform distribution of the expected values. Introductory Statistics 2013-09-19T00:00:00Z No terms were announced, but the expected value based on Brown’s No. 25 draft slot is $11.8 million over the first four years. NFL notebook: LT Williams reportedly wants out of D.C. 2019-06-05T04:00:00Z As a result, the expected value of playing actually decreases as jackpots get very large. Perspective | Five myths about the lottery 2019-12-27T05:00:00Z The expected value method assumes that the experiment is conducted multiple times rather than just once as in the other method. Introductory Business Statistics 2017-11-29T00:00:00Z “I estimate his expected value of major wins is about one every two years,” Riccio says. Analyzing the likelihood that Tiger Woods breaks the win records of Jack Nicklaus and Sam Snead - Golf Digest 2019-05-07T04:00:00Z This “long-term average” is known as the mean or expected value of the experiment and is denoted by the Greek letter μ. Introductory Statistics 2013-09-19T00:00:00Z The authors formalize EMX as a question about a learner’s ability to find a function, from a given family, whose expected value over a target distribution is as large as possible. Unprovability comes to machine learning 2019-01-06T05:00:00Z They found the expected value of dark energy from such simulations to be 20 to 50 times larger than what is seen in reality. Dark energy’s weakness may be why supernovae didn’t kill us all 2018-05-04T04:00:00Z If it is sampled repeatedly with samples of size 16, what is the expected value and standard deviation of the sample means? Introductory Business Statistics 2017-11-29T00:00:00Z The permutation tests used in this study are critical in determining whether the observed patterns lie outside the range of expected values given the structure of the data. Erratum: Non-adaptive plasticity potentiates rapid adaptive evolution of gene expression in nature 2018-03-27T04:00:00Z Find the long-term average or expected value, μ, of the number of days per week the men's soccer team plays soccer. Introductory Statistics 2013-09-19T00:00:00Z The repeal of the tax penalty will progressively worsen ObamaCare’s risk pool as healthy enrollees who currently pay more into the system than the expected value of their coverage exit the exchanges. How to Complete the Escape From ObamaCare 2018-03-15T04:00:00Z The UBS note praised Dominion as being “adept at navigating VA politics” and added 5 percent to the expected value of its business in expectation of the General Assembly’s passing a favorable regulatory overhaul. Dominion bill passes Va. House with key change aimed at helping consumers 2018-02-13T05:00:00Z If it is sampled repeatedly with samples of size 48, what is the expected value and standard deviation of the sample means? Introductory Business Statistics 2017-11-29T00:00:00Z At first glance this looks like a wash until you realize that the expected value of the interest deduction was baked into the cost of housing when you bought. Senate Tax Plan Diverges From House Version, Highlighting Political Pressures 2017-11-09T05:00:00Z The table helps you calculate the expected value or long-term average. Introductory Statistics 2013-09-19T00:00:00Z Orthodox economic theory dictates that the expected value — the product of the probability of winning, times the prize — determines the value of a lottery ticket. Powerball: Somebody’s gotta win, eventually 2017-08-23T04:00:00Z Maybe it’s low, but the expected value of having an escape hatch is pretty high.’ ” Doomsday Prep for the Super-Rich 2017-01-22T05:00:00Z If it is sampled repeatedly with samples of size 60, what is the expected value and standard deviation of the sample means? Introductory Business Statistics 2017-11-29T00:00:00Z “The thing we focus on is expected value,” said Ms. Tuna, a former journalist who runs their foundation while her husband focuses on running his current tech start-up, Asana. Philanthropy in Silicon Valley: Big Bets on Big Ideas 2016-11-04T04:00:00Z The number 1.1 is the long-term average or expected value if the men's soccer team plays soccer week after week after week. Introductory Statistics 2013-09-19T00:00:00Z Other unpopular color choices: Homes with dark-brown bathrooms sold nearly $500 below expected values, and homes with dark-gray dining rooms sold for $1,112 under expectations. White Is the New Black for Luxury Real Estate 2016-07-21T04:00:00Z That's true, and largely due to a national student-level data ban that the higher education lobby won in order to obscure a detailed picture of the expected value of their diplomas. A Much Better Way for Higher Education 2016-06-22T04:00:00Z If a sample of 50 students is taken repeatedly, what is the expected value of the mean of the sampling distribution of sample proportions? Introductory Business Statistics 2017-11-29T00:00:00Z Pricing is set on the expected value of the vehicle at the end of the term, but auto makers and finance companies often subsidize the deal to lower monthly payments. Record Vehicle Leasing Could Pinch New Auto Margins 2016-03-06T05:00:00Z Find the expected value of the number of times a newborn baby's crying wakes its mother after midnight. Introductory Statistics 2013-09-19T00:00:00Z But the expected value of the yuan against the dollar is also a consideration, said Terry Sham, director, financial-services ratings at Standard & Poor’s Ratings Services. Banks in Hong Kong Post Drop in Overseas Loans 2015-10-06T04:00:00Z Although the value of quality farmland edged up 0.5 percent in the second quarter over a year ago, bankers expected values to fall in the three months to Sept. 30. Rents for prime U.S. cropland, farmer incomes projected to fall more 2015-08-13T04:00:00Z If samples of 40 times the game is played are taken repeatedly, what is the expected value of the mean of the sampling distribution of sample proportions? Introductory Business Statistics 2017-11-29T00:00:00Z This extreme proximity in expected values in the old system made neither going for 1 nor 2 an obvious decision and instead one that largely depended on game situation. Three Better Proposals For Fixing The NFL's Extra Point 2015-05-22T04:00:00Z The expected value is the expected number of times per week a newborn baby's crying wakes its mother after midnight. Introductory Statistics 2013-09-19T00:00:00Z But in less clear situations, the expected value of each option becomes important. N.F.L. Explores Making the 2-Point Conversion More Tempting 2015-05-19T04:00:00Z “A lot of men overhyped the expected value, and it made them look more successful.” Kleiner Perkins, Disrupted 2015-03-09T04:00:00Z If samples of 70 people are taken, what is the expected value of the mean of the sampling distribution of sample proportions? Introductory Business Statistics 2017-11-29T00:00:00Z A "risk neutral" investor is willing to pay his/her expected value for a financial contract. A Prediction Market for Inflation—or Deflation 2015-03-06T05:00:00Z To do this problem, set up an expected value table for the amount of money you can profit. Introductory Statistics 2013-09-19T00:00:00Z Since our ability to accurately specify requirements is also impacted by complexity, reducing complexity also increases the likelihood that the business will derive the expected value from the system. SAPVoice: The Tyranny Of Complexity 2014-09-05T04:00:00Z The expected value is what you get by multiplying the probability of each scenario by its payoff. Will Amazon's Revenues Rise $11.2 Million If Hachette Caves? 2014-07-09T04:00:00Z If samples of 50 items are taken, what is the expected value of the mean of the sampling distribution of sample proportions? Introductory Business Statistics 2017-11-29T00:00:00Z More often than not, the expected value of trust will be hugely positive. 4 Secrets To Being A Great Place To Work 2014-04-07T15:02:00Z Find the expected value from the expected value table. Introductory Statistics 2013-09-19T00:00:00Z When they do inconsistencies in experience, responsiveness, information completeness, and accuracy occur that, in the buyers’ mind, introduces doubt about the product, the vendor and expected value. Negotiations Can Drive Churn, But Not For Ceridian And Apttus 2013-09-05T14:01:00Z The figures for economic growth are based on deals already signed as well as predictions of the expected value of future opportunities. Olympics 'bring £9.9bn boost' to UK 2013-07-19T01:51:58Z Apparently, the parties are not realizing expected value and stop the program short. The Internet Of Things Isn't As New As It Seems 2013-02-08T06:09:02Z But my math — based on assumptions that might not agree with Sutton-Gee’s — suggests that the expected value of PlanGrid’s cofounders big company salaries is greater than the value of their share of PlanGrid. How Silicon Valley Helped PlanGrid Lay its Foundation 2013-01-04T13:13:46Z What is the expected value of playing the game? Introductory Statistics 2013-09-19T00:00:00Z None of the repeat C-section rates, despite variations of some 30 percentage points, were significantly higher or lower than the expected values. Birth of a Ranking: Which Hospitals Are Best at Delivering Babies? 2012-11-16T15:50:00Z Just a third of those surveyed think the company's expected value is appropriate, while 50 percent say it is too high. Half of Americans call Facebook a fad 2012-05-15T12:34:00Z Just a third of those surveyed think the company’s expected value is appropriate, 50 percent say it is too high. Poll: Half of Americans Call Facebook a Passing Fad 2012-05-15T12:50:05Z The best odds of winning occur when the prize hits $420 million, but even then the “expected value” of a $1 lottery ticket is just 69¢. So You Won the Mega Millions. Now What? 2012-03-31T07:35:26Z Find the value that is two standard deviations above the expected value, 90, of the sample mean. Introductory Statistics 2013-09-19T00:00:00Z Our density figure is about half the expected value. The Aboriginal Population of the San Joaquin Valley, California 2012-02-06T03:00:12.387Z Despite that, the strain resolution was found to be above the expected value. [Technical Response] Response to Comment on ?Probing the Ultimate Limit of Fiber-Optic Strain Sensing? 2012-01-19T18:55:34.530Z Though the expected value of the gamble is positive, most people dislike it, he says. Germans, Stop Bawling; Euro Rescue Is Your Gain Not Loss: Books 2011-11-30T00:34:14Z Funds maintain a steady $1 level by recording holdings at their expected value at maturity and by rounding to the nearest 1 cent per share, at least once a day. SEC’s Schapiro Seeking ‘Structural Reform’ of Money Funds 2011-11-09T18:47:59Z Each observation or cell category must have an expected value of at least five. Introductory Statistics 2013-09-19T00:00:00Z On net, the expected value of the conversion attempt is much higher than the field goal attempt in that situation. Statistical analysis: Redskins stretched too thin 2011-10-27T15:47:26Z Economists sometimes like to describe choices in terms of a concept known as expected value. Economic Scene: Holding Bernanke Accountable 2011-04-27T00:29:28Z At some point, of course, the difference in mean expected value is large enough that the lower-ceiling/higher-floor player is worth more – even in a shallow league. Bats: Fantasy Focus: Expected Return vs. Ceiling 2011-03-29T10:00:26Z The result is the “expected value” of each pick. Keeping Score: How to Win a Pool That Rewards Upsets 2011-03-13T23:32:45Z Each observation or cell category must have an expected value of at least 5. Introductory Statistics 2013-09-19T00:00:00Z The best drafters tend to avoid making these slim expected value bets. When ADP (Average Draft Position) Is Riskier Than It Appears 2010-08-03T11:11:00Z One way is to use something called “expected value,” or the average outcome if you played the game a bunch of times. NumberPlay: Your Money or Your Logic 2010-07-05T14:54:00Z When all risks have been made comparable by valuing them, then we can add them, and we will use the term expected risk value for the expected value of the �valued risks�. Definition & Reality in the General Theory of Political Economy Multiply 0.2 times 10 points for an expected value of 2. Keeping Score: How to Win a Pool That Rewards Upsets 2011-03-13T23:32:45Z The test compares the observed values against the expected values if the two populations followed the same distribution. Introductory Statistics 2013-09-19T00:00:00Z This domain parallels one of human interactions where expected values are permanently subjected to the scrutiny of the pragmatic activity. The Civilization of Illiteracy In other words, the expected value of y for each particular value lies on a straight line in the population. Introductory Statistics 2013-09-19T00:00:00Z His observation is firstly that money is both a medium of exchange and a store of value, and secondly that storage value depends upon expected value: and then his analysis on expectations takes off. Definition & Reality in the General Theory of Political Economy |
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