Asked by Mikey

Five percent of all items sold by mail order company are returned by customers for a refund. Find the probability that, of two items sold during a given hour by this company,
a) both will be returned for a refund
b) neither will be returned for a refund
Answered by PsyDAG
The probability of both/all events occurring is found by multiplying the probabilities of the individual events.

a) .05*.05 = ?

b) (1-.05)(1-.05) = ?

Answered by Anonymous
a) 0.0025
b)0.9025
Answered by Anonymous
Seven percent of all items sold by a mail-order company are returned by customers for a refund. Find the probability that, of two items sold during a given hour by this company, neither will be returned for a refund.
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