Question

What is the best measure of center for the following data set?

{ 2, 18,18, 20, 22, 24, 25}
A)Range
B)Median
C)Mean
D)Mode

Answer 1

b) median: there are 7 numbers listed; 20 is the middle number among them

range: subtract lowest from highest number 25-2=23

mean: add all the numbers together =129

mode: place numbers in order (smallest to greatest), then see which number appears the most 2, 18, 18, 20, 22, 24, 25=18

Explanation: