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# Random Variable

Posted on 2016-07-31

Can you tell me if I have gotten this correct? If not can you tell me what direction I should going to?

An insurance company surveys its customers to determine the number of children under age 22 living in each household. Complete parts a and b below.

a. What is the random variable for this survey?

A. The number of children under age 22 living in each household

B. Whether or not a child is a customer

C. The number of children under age 22 who are customers

D. The age of the children living in each household

b. Is the random variable discrete or continuous?

A. The random variable is continuous because it can assume an uncountably infinite number of values.

B. The random variable is continuous because it can only assume a finite number of values or an infinite sequence of values such as 0, 1, 2....

C. The random variable is discrete because it can assume an uncountably infinite number of values.

D. The random variable is discrete because it can only assume a finite number of values or an infinite sequence of values such as 0, 1, 2....

ANSWER

a. A is the option the number of children uder 22 living in each household (looks clear from the question)

b. D the random variable is discrete because it can only assume a finite number or an infinite sequence of values such a s 0,1.2,..

we cant have 1.5 child or 2.75 child

it could only be 0 or 1 or 2 or 3 or...