Note: Questions #6-#8 are based on the following sample of ages (in months) of 18 children at a day care: 36, 42, 18, 32, 22, 22, 25, 29, 30, 31, 19, 24, 35, 29, 26, 36, 24, 28

6. The median age of the children is...

a) 29

b) 28.2

c) 30.5

d) 28.5

e) 31

7. The interquartile range for this data set is...

a) 8

b) 12

c) 16

d) 20

e) 24

8. The standard deviation of the age of children is... a) 41.24

b) 11.33

c) 10.20

d) 6.42

e) 6.24