Let Y be a Bernoulli random variable with success probability Pr ( Y = 1 ) = p , and let Y 1 , … , Y n be i. i.d. draws from this distribution. Let ˆ p be the fraction of successes (1s) in this sample. Show that ˆ p = ¯¯¯ Y . Show that ˆ p is an unbiased estimator of p. Show that var ( ˆ p ) = p ( 1 − p ) / n .

it shoild be o

step-by-step explanation:

all group life insurance is term insurance. actually it is annual renewable term and it is rated on the average age and claims experience of the entire group, which is called "experience rating." remember, this type of insurance has a 31-day grace period and is convertible to whole life upon leaving employment. a contributory group plan requires that both the employer and the employees pay part of the premium. at least 75% of those eligible must participate, so the group is sure to get most of the healthy employees as well as those that are sick.

step-by-step explanation:

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the answer is d

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