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Chapter 1: Q. 52. (page 48)

Easy reading? Refer to Exercise 46. Describe the shape of the distribution.

Short Answer

Expert verified

Roughly symmetric

Single peak

No gaps

Step by step solution

01

Step 1. Given information

Here are data on the lengths of the first 25 words from Toni Morrison鈥檚 Song of Solomon:

02

 Step 2. make a number line for each piece of data Put a dot on the number line above the corresponding number.

03

 Step 3. The shape of the distribution.  

The peak in the dotplot is roughly in the middle of the graph, indicating that the distribution is roughly symmetric.

We notice that the distribution has a single peak at 7, and there appear to be no (large) gaps in the dotplot.

Roughly symmetric

Single peak

No gaps

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Most popular questions from this chapter

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.

For which of the following would it be inappropriate to display the data with a single pie chart?

(a) The distribution of car colors for vehicles purchased in the last month

(b) The distribution of unemployment percentages for each of the 50 states

(c) The distribution of favorite sport for a sample of 30 middle school students (d) The distribution of shoe type worn by shoppers at a local mall

(e) The distribution of presidential candidate preferences for voters in a state

Feeling sleepy? Refer to Exercise 45. Describe the shape of the distribution.

Getting older How old is the oldest person you know? Prudential Insurance Company asked 400 people to place a blue sticker on a huge wall next to the age of the oldest person they have ever known. An image of the graph is shown here. Describe the shape of the distribution.

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..
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