Log in Chip Mattis 8 years agoPosted 8 years ago. Direct link to Chip Mattis's post “Wouldn't the expected val...” Wouldn't the expected value for a 2-point shot be 2 points? I understand what you're getting at, but this seems like asking what color Napoleon's white horse was. • (22 votes) KaUh Erte 7 years agoPosted 7 years ago. Direct link to KaUh Erte's post “The idea ist that she wil...” The idea ist that she will make half of her 2-point shots, scoring 2 points each, but also miss the other half, scoring 0 points each. So this, over time, will yield a result of approximately 1 point per shot. (109 votes) bgrooms6278 8 years agoPosted 8 years ago. Direct link to bgrooms6278's post “how do I find expected va...” how do I find expected value • (1 vote) Eugene Browder 8 years agoPosted 8 years ago. Direct link to Eugene Browder's post “expected value = value*pr...” expected value = value*probability (39 votes) HBarakzay 7 years agoPosted 7 years ago. Direct link to HBarakzay's post “If E(X)= µ, what is E(X− ...” If E(X)= µ, what is E(X− µ) ? • (1 vote) Ian Pulizzotto 7 years agoPosted 7 years ago. Direct link to Ian Pulizzotto's post “The expected value of a d...” The expected value of a difference is the difference of the expected values, and the expected value of a non-random constant is that constant. Note that E(X), i.e. the theoretical mean of X, is a non-random constant. Have a blessed, wonderful day! (12 votes) AlAbbas14 5 years agoPosted 5 years ago. Direct link to AlAbbas14's post “Hi just wondering what ye...” Hi just wondering what year/s is mathematics II ? and does anyone know any helpful sites i can do a exam of mathmatics 2 ? • (3 votes) astro648 3 years agoPosted 3 years ago. Direct link to astro648's post “It varies, you can find i...” It varies, you can find it in highschool courses but it covers a wide range of topics that are in a wide range of grades like it covers both probability, geometry, and trigonometry which varies across different grade levels and courses for those respective grade levels. Sorry for the 2 year late reply but...well...better late than never, right? (6 votes) daniel zhang 4 years agoPosted 4 years ago. Direct link to daniel zhang's post “How do you determine whet...” How do you determine whether the odds are to your favor using the expected probability formula • (1 vote) daniella 4 months agoPosted 4 months ago. Direct link to daniella's post “In order to determine whe...” In order to determine whether the odds are in your favor using the expected probability formula, you need to compare the expected value (or mean) with the potential outcomes. If the expected value is higher than the current situation or the alternative options, then the odds are generally in your favor. Conversely, if the expected value is lower, then the odds may not be as favorable. For example, in Problem 2, Kayla's expected value for a 2-point shot is 1 point, while for a 3-point shot, it's 0.6 points. If Kayla consistently makes 2-point shots, she can expect to score an average of 1 point per shot. If she consistently makes 3-point shots, she can expect to score an average of 0.6 points per shot. Therefore, she should choose the option with the higher expected value to maximize her scoring potential. (1 vote) Tue Pham 6 years agoPosted 6 years ago. Direct link to Tue Pham's post “In problem 1, can someone...” In problem 1, can someone reinterpret the problem please? Isn't that space 1 , 2 or 3 just the name of the certain area of the board game spinner? Why do we multiply the name by its probability ? I really don't understand the problem. Thanks in advance. • (0 votes) Mark Thomas 6 years agoPosted 6 years ago. Direct link to Mark Thomas's post “Hi Tue Pham! When you sp...” Hi Tue Pham! When you spin the spinner, the result tells you how many spaces you get to move forward on an imaginary game board. Imagine a game where your goal is to get from "point A" to "point B", and to get there you move a certain number of spaces each turn. Sort of like this: (3 votes) emilio.wendlandt 4 years agoPosted 4 years ago. Direct link to emilio.wendlandt's post “I finished it and it does...” I finished it and it does not tell me that I have it done what do I do • (1 vote) e.guzman209209 4 years agoPosted 4 years ago. Direct link to e.guzman209209's post “For question 1, is the sp...” For question 1, is the spinner fair ? • (1 vote) Liang a year agoPosted a year ago. Direct link to Liang's post “why the combined probabil...” why the combined probability of 2 and 3-points are not 1? • (1 vote) daniella 4 months agoPosted 4 months ago. Direct link to daniella's post “The combined probability ...” The combined probability of Kayla making a 2-point shot and a 3-point shot is not necessarily equal to 1 because she might miss both types of shots. In this scenario, if Kayla misses both types of shots, the combined probability would be less than 1. It's important to understand that the probabilities provided represent the likelihood of specific outcomes (i.e., making a 2-point shot or making a 3-point shot) and do not necessarily guarantee that one of the outcomes will occur. The sum of these probabilities indicates the total probability space for all possible outcomes, but it doesn't have to equal 1 in this case because there are other potential outcomes not explicitly mentioned (such as missing both types of shots). (1 vote) John He 7 years agoPosted 7 years ago. Direct link to John He's post “What is expected value?” What is expected value? • (0 votes) David Lee 7 years agoPosted 7 years ago. Direct link to David Lee's post “Expected value is the lon...” Expected value is the long-run average value of repetitions of the experiment it represents. From: Wiki (2 votes)Want to join the conversation?
Therefore, if E(X) = µ, we have E(X − µ) = E(X) − E(µ) = µ − µ = 0.
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thanksSTART --- ( A ) --- ( B ) --- ( C ) --- ( D ) --- END
If you spin and get a "3", you would move from START to A, B, and finally land on C (you would move 3 spaces forward). Does that help clarify?
See Also
Expected Value CalculatorProperties of the expected value4.2 Mean or Expected Value and Standard Deviation - Statistics | OpenStaxExpectation | Mean | Average