题目内容
（请给出正确答案）
A、equal to the random variable.
B、equal to the mean of the distribution.
C、equal to the variance of the distribution.
D、cannot be greater than 1.
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更多“For any probability distribution, the expected value is:”相关的问题
A、movement downward and to the left along a supply curve.
B、movement upward and to the right along a supply curve.
C、rightward shift of a supply curve.
D、leftward shift of a supply curve.
A、euro deposits have a lower expected return than dollar deposits.
B、the expected return on euro deposits in terms of dollars is 9 percent.
C、the expected return on dollar deposits in terms of euros is 19 percent.
D、both A and B of the above will occur.
E、none of the above will occur.
A、该作者的学位授予单位为：National-Louis University
B、Norman, Jessica Nicole是论文作者
C、作者的工作单位是：National-Louis University
D、Norman, Jessica Nicole是导师
(1)如果理查德购买了一张彩票，它的期望收益是多少?方差呢?
(2)理查德的绰号是“无风险的草堆”，因为他对风险极度地规避。他会购买彩票吗?
(3)理查德获得了1000张彩票。讨论一下你将怎样确定他愿意卖出这1000张彩票的最低价格?
(4)从长期来看，给定彩票的价格和回报/概率表，你认为该州可以从该活动中得到什么?
Richard is deciding whether to buy a state lottery ticket. Each ticket costs $ 1, and the probability of winning payoff is given as follows:
a. What is the expected value of Richard' s payoff if he buys a lottery ticket? What is
the variance?
b. Richard' 8 nickname is“No-risk Rick". He is an extremely risk-averse individual. Would he buy the ticket?
e. Richard has been given 1000 lottery tickets. Discuss how you would determine the smallest amount for which he would be willing to sell all 1000 tickets.
d. In the long run, given the price of the lottery tickets and the probability/return table, what do you think the state would do about the lottery?
A、more positively skewed.
B、more negatively skewed.
C、symmetrical.
D、rectangular.
A、9.50.
B、0.475.
C、100.0.
D、0.9025.
A、9.5.
B、10.
C、0.95.
D、0.50.
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