useful for comparing the size of each category with the whole (ie the proportion of the whole population falling in each category). A bar graph is more useful for comparing the sizes of different categories with each other. Find the mean of the set of data.
-225, 218, 210, 210, 210, 210, 218, 214, 214, 214, 218, 218 Round your answer to one decimal place.
A)214.9
B)214.6
C)215.0
D)215.7

Question

Quizplus · Accepted Answer

To find the mean, add all the numbers together and divide by the count of numbers. (225 + 218 + 210 + 210 + 210 + 210 + 218 + 214 + 214 + 214 + 218 + 218) / 12 = 2571 / 12 = 214.25, which rounds to 214.9.

Useful for Comparing the Size of Each Category with the Whole