Approximately 1% of all USPS package deliveries are lost.You select 10 deliveries at random.Assuming that all the binomial conditions are met, what is the "expected" number of lost packages in this 10 delivery sample?
A)1.00
B).1542
C).0666
D).100
E).0914

Question

Quizplus · Accepted Answer

The expected number of lost packages in a binomial distribution is calculated by multiplying the probability of a single event by the number of trials. Here, with a 1% loss rate (0.01) and 10 deliveries, the expected number is 0.01 * 10 = 0.10.

Approximately 1% of All USPS Package Deliveries Are Lost