Construction of frequency distribution - SS1 Economics Past Questions and Answers (page 1)

1

What is the purpose of frequency distribution in economic analysis?

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A

To organize data into classes

B

To calculate the mean

C

To find extreme values

D

To create a scatter plot

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2

Which of the following is not a step to construct a frequency distribution

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A

Determine the range of the data

B

Decide on the number of intervals (or classes)

C

Determine the average value of the set of data

D

Determine the width of the intervals

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3

Suppose a teacher wants to analyze the test scores of their students in a math class. The scores range from 0 to 100, and there are 30 students in the class. The teacher groups the scores into intervals of 10 points each (0-9, 10-19, 20-29, and so on). The following table shows the frequency distribution of the test scores:

Interval	Frequency
0 - 9	2
10-19	4
20-29	6
30-39	5
40-49	3
50-59	5
60-69	2
70-79	2

80-89

1

Find the percentage of students who scored less than 50 on the test.

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Construction of frequency distribution - SS1 Economics Past Questions and Answers - page 1