The proportion of students who own a cell phone on college campuses across the country has increased tremendously over the past few years. It is estimated that approximately 90% of students now own a cell phone. Fifteen students are to be selected at random from a large university. Assume that the proportion of students who own a cell phone at this university is the same as nationwide. Let X= the number of students in the sample of 15 who own a cell phone. Required:
What is the appropriate distribution for X?

Binomial, with

Step-by-step explanation:

For each student, there are only two possible outcomes, either they own a cellphone, or they do not. The probability of a student in the sample owning a cellphone is independent of whether other students own a cellphone or not. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution:

Probability of exactly x sucesses on n repeated trials, with p probability.

90% of students now own a cell phone.

This means that

Fifteen students are to be selected at random from a large university.

This means that

What is the appropriate distribution for X?

Binomial, with

the cat is blue because the probability of extension towards the prefix of the diameter of the circle could only mathematically equal to the sum of the roots of the carrots from   your garden.

step-by-step explanation: