Question

Asked Oct 26, 2019

3 views

A certain state has the highest high school graduation rate of all states at

85%.

a. In a random sample of

20

high school students from the state, what is the probability that
16

will graduate?b. In a random sample of

20

high school students from the state, what is the probability than
15

or fewer will graduate?c. What is the probability that at least

16

high school students in our sample of
20

will graduate?Please be very specific every question I have asked has been incorrect so far.

Step 1

**Solution: **We are given that a certain state has the highest high school graduation rate of all states at 85%

Let x be the number of high school graduates. Then the random variable x follows binomial distribution with p = 0.85, n = 20

and below probability mass function:

Step 2

a. In a random sample of 20 high school students from the state, what is the probability that 16 will graduate?

Answer: Here we have to find:

Step 3

b. In a random sample of 20 high school students from the state, what is the probability ...

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