# Question

The data in the accompanying table represents the percentage of workers who are members of a union for each U.S. state and the District of Columbia (AARP Bulletin, September 2009).

a. Construct a histogram of these data using class intervals of 0 to _5, 5 to _10, 10 to _15, 15 to _20, and 20 to _25.

b. Construct a dotplot of these data. Comment on the interesting features of the plot.

c. For this data set, which is a more informative graphical display—the dotplot from Part (b) or the histogram constructed in Part (a)? Explain.

d. Construct a histogram using about twice as many class intervals as the histogram in Part (a). Use 2.5 to _5 as the first class interval. Write a few sentences that explain why this histogram does a better job of displaying this data set than does the histogram in Part (a).

a. Construct a histogram of these data using class intervals of 0 to _5, 5 to _10, 10 to _15, 15 to _20, and 20 to _25.

b. Construct a dotplot of these data. Comment on the interesting features of the plot.

c. For this data set, which is a more informative graphical display—the dotplot from Part (b) or the histogram constructed in Part (a)? Explain.

d. Construct a histogram using about twice as many class intervals as the histogram in Part (a). Use 2.5 to _5 as the first class interval. Write a few sentences that explain why this histogram does a better job of displaying this data set than does the histogram in Part (a).

## Answer to relevant Questions

Medicare’s new medical plans offer a wide range of variations and choices for seniors when picking a drug plan (San Luis Obispo Tribune, November 25, 2005). The monthly cost for a stand-alone drug plan varies from plan to ...An exam is given to students in an introductory statistics course. What is likely to be true of the shape of the histogram of scores if: a. the exam is quite easy? b. the exam is quite difficult? c. half the students in the ...Consumer Reports Health (www.consumer reports.org) gave the accompanying data on saturated fat (in grams), sodium (in mg), and calories for 36 fast-food items. a. Construct a scatterplot using y = calories and x = fat. Does ...The accompanying time-series plot of movie box office totals (in millions of dollars) over 18 weeks of summer for both 2001 and 2002 appeared in USA Today (September 3, 2002): Patterns that tend to repeat on a regular ...The report referenced in Exercise 3.53 also gave average math SAT scores for the three language groups, as shown in the following table.. Construct a comparative bar chart for the average verbal and math scores for the three ...Post your question

0