Arecent survey conducted for the national association of broadcasters investigated satellite radio subscriber service and usage. the june 2007 survey, conducted by wilson research strategies, consisted of a random sample of 501 satellite radio subscribers. one of the questions of interest was, "do you have a satellite radio receiver in your car? " what is the variable of interest? a. satelliteradio subscriber b. whether or not a satellite radio subscriber has a satellite radio receiver in his/her car or not c. satellite radio receiver d. how many satellite radio receiver in his/her car

Option B) Whether or not a satellite radio subscriber has a satellite radio receiver in his/her car or not

Step-by-step explanation:

We are given the following in the question:

A recent survey investigated satellite radio subscriber service and usage.

Population of interest:

The population of interest for the given survey is all satellite radio subscribers.

A sample was taken from this population.

Sample of interest:

A random sample of 501 satellite radio subscribers from the population

Variable of interest:

Whether the radio subscriber in sample have a sattelite radio reciever or not.

Option B) Whether or not a satellite radio subscriber has a satellite radio receiver in his/her car or not

This is a qualitative variable.

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

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