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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

As mentioned, for relative-frequency polygons, we label the horizontal axis with class marks in limit grouping and class midpoints in cut point grouping. How do you think the horizontal axis is labeled in single-value grouping.

San Francisco Giants. From the Baseball Almanac website, we found the heights, in inches, of the players on the 2012 World Series-winning San Francisco Giants baseball team.

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?

For a qualitative data set, what is a

a. frequency distribution?

b. relative-frequency distribution?

What is the frequency distribution of qualitative data and why is it useful?

Draw a smooth curve that represents a symmetric trimodal (three-peak) distribution.
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