Statistics problem

Question

Listed below are the top 10 annual salaries(in millions of dollars) of TV personalities. Find the (a) mean, (b) median, (c) mode, and (d) midrange for the given sample data in millions of dollars. Given that these are the top 10 salaries, do we know anything about the salaries of TV personalities ingeneral? Are such top 10 lists valuable for gaining insight into the largerpopulation?
38.7, 35.1, 35.9, 26.5, 14.7, 12.2, 11.3, 9.5, 10.5, 8.7

 

I don't know what the mean is?

Answer 1

First, arrange the data in increasing order:

 

     8.7   9.5   10.5   11.3   12.2   14.7   26.5   35.1   35.9   38.7

• mean = average = (8.7+9.5+10.5+11.3+12.2+14.7+26.5+35.1+35.9+38.7)/10 = _____
• median = middle value = (12.2+14.7)/2 = ______
• mode = value that appears most often.  If no numbers repeat, there is no mode (mode = none) = ______
• range = largest number - smallest number = 38.7 - 8.7 = ______
• mid-range = (largest value + smallest value)/2 = (38.7 + 8.7)/2 = ________