An elevator can hold a maximum of 1,500 pounds. Eight people need to use the elevator. Bill had some

measures from the data set of how much each person weighed. Which measure would be most useful to

determine if the people can safely use the elevator?

A. mean

B. median

C. mode

D. interquartile range

Well first we need to determine what each choices (mean, median, mode, interquartile range) means.

Mean - average of a set of numbers

Median - middle number of a set of numbers

Mode - number that appears the most in a set of numbers

Interquartile range - find median of set of numbers and separate the set into 3 equal sections total. Subtract the 3rd section from the 1st section. So you can find the range or span of numbers.

If you want to build an elevator that can hold a maximum of 1,500 pounds, i think the most important fact you need to know about weight is the average weight that all the people weighs so you can know what to expect