Question

Leanna guesses on four multiple choice test questions in a row. Each question has 3 possible answers. What is the probability that Leanna will guess the answer to the 4th question correctly?

A.) 1/81
B.) 1/12
C.) 1/3

Answer 1

The probability of correctly guessing the answer to each one of the four questions is 1/3.
Therefore the correct choice of answer is C.

Answer 2

The fourth question is an independent event and that Leanna can choose from 3 choices. Only 1 of the 3 choices is right. Therefore, the probability of getting the correct answer is 1/3. The answer is letter C. 1/3.