I l , : .5 Wm... B ALEKS - Everett Massey - Learn 0 DESCRIPTIVE STATISTLCS Appioximating the mean of a data set given a histogram Accu-Ratlng has just released its webcast report for last month. The report details the aggregate tuning hours for each of the top 15 radio stations broadcast over the web. (The aggregate tunlng hours for a station is the sum total of all hours that listeners tuned to the station.) The report displays the following histogram: Frequency 400 600 890 1000 Aggregate tunlng hours (In thousands cl hours) Based on the histogram, estimate the mean aggregate tunlng hours (in thousands of hours) for these radio stations. Carry your Intermediate computations to at least four decimal places, and round your answer to at least one decimal place. 'l'T 7 |_ u t. n __._ __ H ,, ,7 7 ., ; 7. _ .,._._ emit; , 7 :. ..-_-,_,;.=-..,__.._wm.=.=u==