Question

accu - rating has just released its webcast report for last month. the report details the aggregate tuning hours (aths) for the top 20 radio stations broadcast over the web. (the ath for a station is the sum total of all hours that listeners tuned to the station.) the report displays the following histogram. based on the histogram, find the proportion of aths in the sample that are less than 400 thousand hours. write your answer as a decimal, and do not round your answer.

Explanation:

Step1: Identify total sample size

Total stations = 20 (given as top 20)

Step2: Find frequency of ATH < 400k

From histogram, first bar (200-400k) has frequency 2

Step3: Calculate proportion

Proportion = 2/20 = 0.1

Answer:

0.1