Carlson Jewellers permits the return of their diamond wedding rings, provided the return occurs within two weeks of the purchase date. Their records reveal that 10 percent of the diamond wedding rings are returned. Five different customers buy five rings. What is the probability that all will be returned?
A) 0.00250
B) 0.59049
C) 0.00590
D) 0.00045
E) 0.00001

Question

Quizplus · Accepted Answer

The probability that one ring is returned is 0.10. The probability that all five rings are returned is (0.10)^5 = 0.00001.

Carlson Jewellers Permits the Return of Their Diamond Wedding Rings