Low birth weights Figure 2.12 (on the next page) shows the

Chapter 2, Problem 2.21

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Low birth weights Figure 2.12 (on the next page) shows the distribution of percent of low birth weights for the 26 states east of the Mississippi.10 Notice that the vertical scale in Figure 2.12(a) is the number of states in each class. In Figure 2.12(b), we have calculated and displayed the percent of states in each low-birth-weight class. (a) Describe the shape, center, and spread of the distribution. (b) When might it be preferable to use percents rather than counts on the vertical axis of a histogram? (c) Mississippi had the highest percent of low birth weight, 10.1. Why do you think this state has such a high percent of low-birth-weight infants?