Question

Jameela spins the following spinner 36 times.

A spinner with 4 equal sections labeled 1 through 4.

How many times should she expect it to land on 3?

Enter your answer as a number, like this: 42

PLEASE HELP ME IM NOT GOOD AT MATH

Answer 1

Using the binomial distribution, it is found that she should expect it to land on 3 9 times.

What is the binomial probability distribution?

It is the probability of exactly x successes on n repeated trials, with p probability of a success on each trial.

The expected value of the binomial distribution is:

E(X) = np

In this problem:

• The spinner is equally as likely to land on any of the four sections, hence p = 1/4 = 0.25.

• There will be 36 trials, hence n = 36.

Then, the expected value is given by:

E(X) = np = 36 x 0.25 = 9.

More can be learned about the binomial distribution at https://brainly.com/question/24863377