Fuel efficiency Refer to Exercise 48. Describe the distribution.

Short Answer

Expert verified

Left skewed

Single peak

Gap between -2 mpg and 6 mpg

Step by step solution

01

Step 1. Given information. 

The dotplot shows the difference (Highway − City) in EPA mileage ratings, in miles per gallon

02

 Step 2. The shape of the distribution.  

We can see that the distribution is skewed to the left because the peak in the dotplot is to the right, with a tail of fewer dots to the left.

We notice that the distribution has a single peak at 9 mpg, with a gap between -2 mpg and 6 mpg. -3 mpg is thus a possible outlier.

Left skewed

Single peak

Gap between -2 mpg and 6 mpg

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Most popular questions from this chapter

Spam Email spam is the curse of the Internet. Here is a relative frequency table that summarizes data on the most common types of spam:

(a) What percent of spam would fall in the “Other” 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.

Disc dogs Here is a list of the breeds of dogs that won the World Canine Disc Championships from 1975 through 2016. Make a relative frequency bar graph for these data. Describe what you see.

The histogram shows the distribution of the percent of women aged 15 and over who have never married in each of the 50 states and the District of Columbia. Which of the following statements about the histogram is correct?

a. The center (median) of the distribution is about 36%.

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(a) Find the distribution of superpower preference for the students in the sample from each country (i.e., the United States and the United Kingdom). Make a segmented bar graph to compare these distributions.

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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

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