# A certain state has the highest high school graduation rate of all states at85​%. a. In a random sample of20high school students from the​ state, what is the probability that16will​ graduate?b. In a random sample of20high school students from the​ state, what is the probability than15or fewer will​ graduate?c. What is the probability that at least16high school students in our sample of20will​ graduate?  Please be very specific every question I have asked has been incorrect so far.

Question
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
b. In a random sample of
20
high school students from the​ state, what is the probability than
15
c. What is the probability that at least
16
high school students in our sample of
20

Please be very specific every question I have asked has been incorrect so far.
check_circle

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 ...

### Want to see the full answer?

See Solution

#### Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in