MATH SOLVE

2 months ago

Q:
# 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

[tex]Pr(X \geq 7)[/tex]

[tex]X \sim Bi (9, \frac{1}{4} )[/tex]

The required probability which you can find using your calculator is

[tex]Pr(X \geq 7)[/tex]