In a certain college, 33% of the physics majors belong to ethnic minorities. of 8 students are selected at random from the physics majors, what is the probability that more than 5 belong to an ethnic minority?

0.0187

Step-by-step explanation:

The binomial distribution formula for probability :-

, where P(x) is the probability of getting success in x trials , n is the total number of trials and p is the probability of getting success in each trial.

Given : The probability that the physics majors belong to ethnic minorities =0.33

Number of students selected : n= 8

Now, the probability that more than 5 belong to an ethnic minority :-

Hence, the probability that more than 5 belong to an ethnic minority = 0.0187

a. she will receive a refund of $278.

step-by-step explanation:

the answer is (-4,-4)

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