This quiz has 9 questions with 4 options for each question. if a student chooses answers randomly, what is the probability that he will get at least 7 answers correct
Accepted Solution
A:
This question is solved using a binomial distribution, and you must use a calculator.
[tex]X \sim Bi (9, \frac{1}{4} )[/tex]
The required probability which you can find using your calculator is