It is known that 60% of the students at a large university have a job and 40% do not have a job. If three of these students are randomly selected what is the probability all three have jobs?
a. 0.360
b. 0.216
c. 0.648
d. 0.060

b. 0.216

Step-by-step explanation:

For each student, there are only two possible outcomes. Either they have a job, or they do not. The probability of a student having a job is independent of other students. So we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which is the number of different combinations of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.

60% of the students at a large university have a job

This means that

If three of these students are randomly selected what is the probability all three have jobs?

This is when . So

So the correct answer is:

b. 0.216

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation:

your answer is -9

step-by-step explanation: