Question: Question 2

The amount a mother spends on prenatal care can have a long-term impact in terms of reducing complications resulting from a baby's low birth weight. A random sample of 50 new mothers was asked to estimate how much they spent on prenatal care. The results are presented in the frequency distribution below.

a) Calculate the mean amount spent on prenatal care.

b) Use the short-cut formula to calculate the standard deviation of amounts spent on prenatal care.

c) Construct a relative frequency polygon of amounts spent on prenatal care. Use a ruler and the graph paper provided below.

d) Construct a percentage ogive of amount spent on prenatal care. Use a ruler and the graph paper provided below.

e) Does the frequency polygon suggest skewness in the data? If so, in which direction?

f) What percentage of mothers spent less than $200 on prenatal care?