1. Frequency Distribution of Birth Weights Construct a frequency distribution of the 20 birth weights (grams) listed below. (These data are from Data Set 3 "Births" in Appendix B). Use a class width of 500 grams and a starting value of 2000 grams. 3500 3800 2100 3400 2600 3000 4100 4100 4300 3400 2700 3300 2900 3300 3500 2800 3500 3700 3000 3600 2. Histogram of Birth Weights Construct the histogram that corresponds to the frequency distribution from Exercise 1. Use class midpoint values for the horizontal scale. Does the histogram suggest that the data are from a population having a normal distribution? Why or why not? 3. Dotplot of Birth Weights Construct a dotplot of the birth weights listed in Exercise 1. Which does a better job of illustrating the distribution of the data: the histogram from Exercise 2 or the dotplot? 4. Stemplot of Birth Weights Construct a stemplot of the birth weights listed in Exercise I. Are there any outliers? 5. Bears Listed below are the neck sizes (in.) and weights (Ib) of bears (from Data Set 11 "Bear Measurements" in Appendix B). Construct a scatterplot. Based on the graph, does there appear to be a relationship between neck sizes and weights of bears? Neck Size (in.) 16 28 31 31.5 22 21 26.5 27 20 18 Weight (1b) 80 344 416 348.0 166 220 262.0 360 204 144 6. Monitoring Weight a. After collecting the average (mean) weight of adult males in the United States for each of the most recent 100 years, we want to construct the graph that is most appropriate for these data. Which graph is best? b. After collecting the average (mean) weight and height of males for the most recent 100 years, we want to construct a graph to investigate the association between those two variables. Which graph is best? c. An investigation of health problems associated with overweight males includes heart dis- ease, stroke, high blood pressure, diabetes, and breathing problems. If we want to construct a graph that illustrates the relative importance of these adverse effects, which graph is best? 7. Medical School Enrollees The accompanying graph illustrates male and female enrollees in U.S. medical schools in a recent year. What is wrong with the graph? Percent Male Female Medical School Enrollees