Question

Make a box and whisker plot using the data set below:4, 6, 6, 10, 12, 15, 16, 20, 20, 20, 21

Answer 1

The minimum value is: 4

The maximum value is: 21

The median is the middle value, which is 15

The first quartile (Q1) falls between 6 and 10

Q1 = (6+10)/2= 16/2 =8

The third quartile (Q3) falls between 20 and 20

So Q3 = (20 + 20) / 2 = 40/2 =20