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Chapter 2: Q.2.71 (page 69)

Use cutpoint grouping with the first cutpoint of 25 and a class width of 3.

Short Answer

Expert verified

a). The frequency distribution,

b). Relative frequency distribution,

c). Frequency histogram,

Step by step solution

01

Part (a) Step 1: Given Information

Given data:

02

Part (a) Step 2: Explanation

The frequency distribution of the given data;

03

Part (b) Step 1: Given Information

Given data:

04

Part (b) Step 2: Explanation

The relative frequency for the given data:

05

Part (c) Step 1: Given Information

Given data:

06

Part (c) Step 2: Explanation

The bars must be the same width and constrained by the lower class limitations.

The frequency must be reflected in the height of the bars.

The frequency distribution is represented by the histogram below:

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Most popular questions from this chapter

RBI Kings, As reported on MLB.com, the five players with the highest runs batted in (RBI) during the 2012 Major League Baseball season are listed in the following table. Also included are the teams for which they played, their positions, and their weights. Identify the type of data provided by the information in each column of the table.

In Exercises 2.20-2.25, we have presented some simple qualitative data sets for practicing the concepts. For each data set,

a. determine a frequency distribution.

b. obtain a relative-frequency distribution.

c. draw a pie chart.

d. Construct a bar chart.

Class Project: Number of Siblings. This exercise is a class project and works best in relatively large classes.

a. Determine the number of siblings for each student in the class.

b. Obtain a relative-frequency histogram for the number of siblings. Use single-value grouping.

c. Obtain a simple random sample of about one-third of the students in the class.

d. Find the number of siblings for each student in the sample.

e. Obtain a relative-frequency histogram for the number of siblings for the sample. Use single-value grouping.

f. Repeat parts (c)-(e) three more times.

g. Compare the histograms for the samples to each other and to that for the entire population. Relate your observations to key Fact 2.1

Detroit Tigers. From the Baseball Almanac website, we found the heights, in inches, of the players on the 2012 World Series runner-up Detroit Tigers baseball team.

Use the graph to answer the following questions. Note that cholesterol levels are always expressed as whole numbers.

a. Construct a stem-and-leaf diagram of these data with five lines per stem.

b. Why is it better to use five lines per stem here instead of one or two lines per stem?

Explain the meaning of

a) Qualitative Variable

b) Discrete, Quantitative Variable

c) Continuous, Quantitative Variable
See all solutions

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