Chapter 1.2 ASolutions

1.33A. GraphB. Women (5-number summary) 101, 126,

138.5, 154, 200. Men: 70, 98, 114.5, 143, 187.C. Women generally score higher than men.

All five stats are higher for women. The men’s scores are more spread out. The shapes of the distributions are roughly similar, each displaying a slight skewness to the right.

1.34A. Equal, since the distribution is roughly

symmetric.B. 42, 51, 54, 59, 69. The median is very

close to the mean.C. IQR = 59-51=8D. GraphE. There are no outliers.

1.35The IQR is resistant. Answers will vary.

1.36A. $1735.00B. Graph. According to the 1.5 x IQR, the

outliers are 85.76, 86.37, and 93.34.

1.37A. Q1 = 25 and Q3 = 45.B. It is not an outlier (75 is the boundary for

outliers).

1.38A. The 5-number summary is 5.7%, 11.675%,

12.75%, 13.5%, and 17.6%B. It would flag Alaska, Florida, and the one

with 8.5%