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.
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
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
To determine
b)
To construct:
The bar graph corresponding to the given table.
Answer to Problem 1E
Solution:
The bar graph is given below.
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.
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