Question

a chimp is taking a multiple-choice test. of course the chimp can't read and is guessing for every question. if there are 4 choices for each question, and there are 84 questions on the test, how many questions can we expect the chimp to answer correctly? (hint: there is a 25% chance that the chimp will guess correctly)​

Answer 1

21 because there is a 1/4 chance and there are 84 questions, so 1/4 (25%) of 84 is 21.

Explanation: