Question
The radio music listener market is diverse. Listener formats might include adult contemporary, album rock, top 40, oldies, rap, country and western, classical, and jazz.
The radio music listener market is diverse. Listener formats might include adult contemporary, album rock, top 40, oldies, rap, country and western, classical, and jazz. In targeting audiences, market researchers need to be concerned about the ages of the listeners attracted to particular formats. Suppose a market researcher surveyed a sample of 186 listeners of country music radio stations and obtained the following age distribution.
Age. Frequency
15-under20 9
20-under 25 16
25-under 30 31
30-under 35 50
35-under 40 46
40-under 45. 25
45-under 50 7
50-under 55 2
a.What are the mean and modal ages of country music listeners?
b.What are the variance and standard deviation of the ages of country music listeners?
(Round your answer to 3 decimal places.)
a.Mean =
Modal ages of country music listeners =
b.Variance =
Standard deviation =
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started