Question

Find the probability of correctly answering the first 5 questions on a multiple choice test if random guesses are made and each question has 3 possible answers?

Answer 1

`(1/3)^5=1/243~~0.0041`

Explanation:

The probability of getting any of the questions correct is `1/3`. This means that getting all 5 of the questions correct is:

`1/3xx1/3xx1/3xx1/3xx1/3=(1/3)^5=1/243~~0.0041`