Question

If a student takes a multiple choice test of five questions with four answers each (with one correct answer), what is the probability of guessing all five questions correctly?

Answer 1

`1/1024~=0.1%`

Explanation:

For each question, there is a probability of `1/4` of guessing the right answer (we're assuming that we're guessing on each question. If you as the student can eliminate choices on each question, the probability will change).

There are 5 questions and getting each question correct has a probability of `1/4`. And so we end up with:

`1/4xx1/4xx1/4xx1/4xx1/4=(1/4)^5=1/1024~=0.1%`