Question

A chimp is taking a multiple - choice test of course the chip can't read and his guessing for every question. If there are 4 choices for each question, and there 84 questions on the test, how many questions can we expect the chimp to answer correctly? There is a25% chance that the chimp will guess correctly

Answer 1

21

Explanation:

He will guess correctly 25% of the time.

He has 84 questions

25% of 84

.25 * 84

21

We should expect that he will get 21 questions correct