Chapter 1: Q. 78. (page 53)
Die rolls Imagine rolling a fair, six-sided die 60 times. Draw a plausible graph of the distribution of die rolls. Should you use a bar graph or a histogram to display the data?
Short Answer

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Chapter 1: Q. 78. (page 53)
Die rolls Imagine rolling a fair, six-sided die 60 times. Draw a plausible graph of the distribution of die rolls. Should you use a bar graph or a histogram to display the data?

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Making money The parallel dotplots show the total family income of randomly chosen individuals from Indiana (38 individuals) and New Jersey (44 individuals). Compare the distributions of total family incomes in these two samples..

The following bar graph shows the distribution of favorite subject for a sample of 1000 students. What is the most serious problem with the graph?

(a) The subjects are not listed in the correct order.
(b) This distribution should be displayed with a pie chart.
(c) The vertical axis should show the percent of students.
(d) The vertical axis should start at 0 rather than 100.
(e) The foreign language bar should be broken up by language.
Coaster craze Many people like to ride roller coasters. Amusement parks try to increase attendance by building exciting new coasters. The following table displays data on several roller coasters that were opened in a recent year.

(a) Identify the individuals in this data set.
(b) What are the variables? Classify each as categorical or quantitative.
Body image Refer to Exercise 25.
(a) Of the respondents who felt that their body weight was about right, what proportion were female?
(b) Of the female respondents, what percent felt that their body weight was about right?
(c) The segmented bar graph displays the distribution of perceived body image by gender. Describe what this graph reveals about the association between these two variables for the 1200 college students in the sample.

Buying cameras The brands of the last 45 digital single-lens reflex (SLR) cameras sold on a popular Internet auction site are listed here. Make a relative frequency bar graph for these data. Describe what you see.

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