Question

A community college has 150 word processors. The probability that any one of them will require repair on a given day is 0.025. To find the probability that exactly 25 of the word processors will require repair, one will use what type of probability distribution?a) Normal distributionb) Poisson distributionc) Binomial distributiond) None of these choices

Answer 1

c) Binomial distribution.

Explanation:

A binomial distribution uses discrete variables, which represents whole numbers, like persons. Also, this type of distribution is used when only to events are possible: success or failure. In this case, success would be require repair, and failure not require repair.

Binomial distribution is also characterised by having a fixed probability k about the success occurrence between trials, which is 0.025 in this case.