2. (12分) Show that for 1 million flips of a balanced coin, the probability is at least 0.99 that the proportion of heads will fall between 0.495 and 0.505.

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2024/11/24

(共 9 字，隱藏中）

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4. (12分) Commercial kerosene is stocked in a bulk tank at the beginning of each week.Because of limited supplies, the proportion X of the capacity of the tank available for sale and the proportion Y of the capacity of the tank actually sold during the week are continuous random variables. Their joint distribution is given byFind the covariance of X and Y.

2. (12分) Show that for 1 million flips of a balanced coin, the probability is at least 0.99 that the proportion of heads will fall between 0.495 and 0.505.

詳解 (共 1 筆)

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