The J.O.Supplies Company buys calculators from a Korean supplier.The probability of a defective calculator is 10 percent.If 100 calculators are selected at random,what is the expected number of defectives?
A)9
B)90
C)10
D)95

Question

Quizplus · Accepted Answer

The expected number of defectives can be calculated by multiplying the total number of calculators with the probability of defectives. Therefore,
Expected number of defectives = 100 x 0.1 = 10. Thus, the best choice is C, which represents the expected number of defectives.

The JOSupplies Company Buys Calculators from a Korean Supplier