Excursions in Modern Mathematics, Books a la carte edition (9th Edition)
Excursions in Modern Mathematics, Books a la carte edition (9th Edition)
9th Edition
ISBN: 9780134469041
Author: Peter Tannenbaum
Publisher: PEARSON
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Textbook Question
Chapter 15, Problem 1E

Exercises 1 through 4 refer to the data set shown in Table 15-12. The table shows the scores on a Chem 103 test consisting of 10 questions worth 10 points each.

Chem 103 test scores.

Table 15-12

Chem 103 test scores

Student ID Score Student ID Score
1362 50 4315 70
1486 70 4719 70
1721 80 4951 60
1932 60 5321 60
2489 70 5872 100
2766 10 6433 50
2877 80 6921 50
2964 60 8317 70
3217 70 8854 100
3588 80 8964 80
3780 80 9158 60
3921 60 9347 60
4107 40

a. Make a frequency table for the Chem 103 test scores.

b. Draw a bar graph for the data in Table 15-12.

Expert Solution
Check Mark
To determine

a.

To find:

The frequency table for the Chem 103 test scores.

Answer to Problem 1E

Solution:

The frequency table for the Chem 103 test scores is given by,

Score Frequency
10 1
40 1
50 3
60 7
70 6
80 5
100 2

Explanation of Solution

Given:

The table below shows the scores on a Chem 103 test consisting of 10 questions worth 10 points each.

Student ID Score Student ID Score
1362 50 4315 70
1486 70 4719 70
1721 80 4951 60
1932 60 5321 60
2489 70 5872 100
2766 10 6433 50
2877 80 6921 50
2964 60 8317 70
3217 70 8854 100
3588 80 8964 80
3780 80 9158 60
3921 60 9347 60
4107 40

A frequency table is a table with the frequency of each actual value in the data set.

Approach:

From the given table the number of students with a score of 10 is 1, so the frequency of score 10 is 1, similarly the number of students with a score of 40 is 1, so the frequency of score 40 is 1 similarly frequencies for rest of scores can be computed.

The frequency table for the Chem 103 test is given by,

Score Frequency
10 1
40 1
50 3
60 7
70 6
80 5
100 2
Expert Solution
Check Mark
To determine

b)

To construct:

The bar graph corresponding to the given table.

Answer to Problem 1E

Solution:

The bar graph is given below.

Excursions in Modern Mathematics, Books a la carte edition (9th Edition), Chapter 15, Problem 1E , additional homework tip  1

Explanation of Solution

Given:

The table below shows the scores on a Chem 103 test consisting of 10 questions worth 10 points each.

Student ID Score Student ID Score
1362 50 4315 70
1486 70 4719 70
1721 80 4951 60
1932 60 5321 60
2489 70 5872 100
2766 10 6433 50
2877 80 6921 50
2964 60 8317 70
3217 70 8854 100
3588 80 8964 80
3780 80 9158 60
3921 60 9347 60
4107 40

A bar graph is a graph with bars (column) representing each of the actual values in the data set. The height of each column represents the frequency of the value in the data set.

Approach:

From the given table the number of students with a score of 0 is 0, so the frequency of score 0 is 0, similarly the number of students with a score of 10 is 1, so the frequency of score 10 is 1 similarly frequencies for rest of scores can be computed.

The frequency table for the Chem 103 test is given by,

Score Frequency
0 0
10 1
20 0
30 0
40 1
50 3
60 7
70 6
80 5
90 0
100 2

Place the scores along horizontal axis and the frequencies along vertical axis to construct bar graph. The bar graph of the frequency table is given below.

Excursions in Modern Mathematics, Books a la carte edition (9th Edition), Chapter 15, Problem 1E , additional homework tip  2

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Chapter 15 Solutions

Excursions in Modern Mathematics, Books a la carte edition (9th Edition)

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