This list represents the number of children for the first six “first ladies” of the United States.

Martha Washington .........0

Abigail Adams ..........5

Martha Jefferson .........6

Dolley Madison............0

Elizabeth Monroe .........2

Louisa Adams...........4

a. Find the mean number of children, rounding to the nearest tenth. Interpret the mean in this context.

b. According to eh.net/encyclopedia, women living around 1800 tended to have between 7 and 8 children. How does the mean of these first ladies compare to that?

c. Which of the first ladies listed here had the number of children that is farthest from the mean and therefore contributes most to the standard deviation?

d. Find the standard deviation, rounding to the nearest tenth.