Chapter 1: Q. 54. (page 48)
Fuel efficiency Refer to Exercise 48. Describe the distribution.
Short Answer
Left skewed
Single peak
Gap between -2 mpg and 6 mpg
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Chapter 1: Q. 54. (page 48)
Fuel efficiency Refer to Exercise 48. Describe the distribution.
Left skewed
Single peak
Gap between -2 mpg and 6 mpg
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You look at real estate ads for houses in Naples, Florida. There are many houses ranging from \(200,000 to \)500,000 in price. The few houses on the water, however, are priced up to $15 million. The distribution of house prices will be
a. skewed to the left.
b. roughly symmetric.
c. skewed to the right.
d. single-peaked.
e. too high.
Cool car colors The most popular colors for cars and light trucks change over time. Silver advanced past green in 2000 to become the most popular color worldwide, then gave way to shades of white in 2007. Here is a relative frequency table that summarizes data on the colors of vehicles sold worldwide in a recent year.

(a) What percent of vehicles would fall in the 鈥淥ther鈥 category?
(b) Make a bar graph to display the data. Describe what you see.
(c) Would it be appropriate to make a pie chart of these data? Explain.
Facebook and age Refer to the preceding exercise.
Part (a). Find the distribution of Facebook use for each of the three age groups. Make a segmented bar graph to compare these distributions.
Part (b). Describe what the graph in part (a) reveals about the association between age and Facebook use.
A smash or a hit Refer to Exercise 23.
(a) Find the distribution of responses about whether there was broken glass at the accident for each of the three treatment groups. Make a segmented bar graph to compare these distributions.
(b) Describe what the graph in part (a) reveals about the association between response about broken glass at the accident and treatment received for the subjects in the study.
Quiz gradesRefer to Exercise 87.
(a) Find the range of Joey鈥檚 first 14 quiz grades and the range of Joey鈥檚 quiz grades after his unexcused absence.
(b) Explain what part (a) suggests about using the range as a measure of variability for a distribution of quantitative data.
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