Question

Every morning at 7 am, Brianna checks her email to see if any of her friends sent her email while she was asleep. Let, Y= the number of new emails she sees on any particular morning. The probability distribution of Y is given below:

P ( Y = 0 ) = 0.55 , P ( Y = 1 ) = 0.30 , P ( Y = 2 ) = 0.15

Suppose, Brianna writes down the value of Y every morning for many days. The sample mean among the numbers she writes down will eventually get very close to what value?

a.) 0.60

b.) 0.55

c.) 0.80

d.) 0.85

Answer 1

TOPIC:Sample mean as an estimator of the population mean.