Question

A multiple choice test has 5 questions each with 5 possible answers. Find the probability of guessing the correct answers to all the questions.
A. 1/3,125
B. 1/25
C. 1/625
D. 1/125

Answer 1

5 of 25 i believe or 1/5

Answer 2

5C5 = 1
and (1/5)^5 ....

Answer 3

given the probability of a correct choice: c = 1/5

P(c)*P(c)*P(c)*P(c)*P(c)

and there is only 1 way to get all 5 correct

\[\binom{5}{5}(1/5)^5(4/5)^0\]