Following is a sample of the percent increases in the price of a house from 2002 to 2007 in 8 regions of the U. S.
75 130 145 150 150 225 225 300
Find the mean.
A) 225
B) 175
C) 150
D) 300

Question

Quizplus · Accepted Answer

The mean (average) is found by adding all the percent increases together and then dividing by the number of regions. The sum of the increases is 1400 (75+130+145+150+150+225+225+300) and there are 8 regions, so the mean increase is 1400 / 8 = 175.

Following Is a Sample of the Percent Increases in the Price