Suppose that in a population of 1000 items, there are 300 defective items and 700 items that are not defective.If you select two items at random from this population, what is the probability that both will be defective?
A) 0.0898
B) 0.4898
C) 0.5112
D) 0.9102

Question

Quizplus · Accepted Answer

The probability of selecting one defective item is 300/1000 = 0.3. After selecting one defective item, there are now 299 defective items left out of 999 total items, so the probability of selecting another defective item is 299/999. The probability of both events happening is (300/1000) * (299/999) = 0.0897, which rounds to 0.0898.

Suppose That in a Population of 1000 Items, There Are