Question

Asked Jul 21, 2019

In a survey of 3 of 4 students said the courts show too much concern for criminals. Find the probability that at most 3 out of 7 randomly selected students will agree with this statement.

Step 1

According to the given question, in a survey of 3 of 4 students said the courts show too much concern for criminals.

Therefore the probability of success is defined as:

Step 2

Let us X be the random variable shows that the number of students will agree with this statement.

Therefore X follows binomial distribution with n=7 and p=0.75 or,

Step 3

Therefore the probability that at most 3 out of 7 randomly sele...

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