The answer is A.16.75, the way you have to find the mean is adding all the numbers in the data set. Example. 14,19,18,12,22,15,16,16,14,14,21,20 = 201 then you would have to divide the the number you just got by the numbers in the data set [which is 12 just count the numbers in the data set]. 201 ÷ 12 = 16.75. Which is the answer. hope i helped 'U' bye.
