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Question
The annual profit earned by 30 shops of a shopping complex in a locality are recorded in the table shown below:
Profit (in lakhs ₹)
Number of shops
More than or equal to 5
30
More than or equal to 10
28
More than or equal to 15
16
More than or equal to 20
14
More than or equal to 25
10
More than or equal to 30
7
More than or equal to 35
3
If we draw the frequency distribution table for the above data, find the frequency corresponding to the class 20−25.
| Profit (in lakhs ₹) | Number of shops |
| More than or equal to 5 | 30 |
| More than or equal to 10 | 28 |
| More than or equal to 15 | 16 |
| More than or equal to 20 | 14 |
| More than or equal to 25 | 10 |
| More than or equal to 30 | 7 |
| More than or equal to 35 | 3 |
If we draw the frequency distribution table for the above data, find the frequency corresponding to the class 20−25.
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Solution
The frequency distribution table of the given data is as follows:
Profit (in lakhs ₹)
Number of shops
5−10
30 − 28 = 2
10−15
28 − 16 = 12
15−20
16 − 14 = 2
20−25
14 − 10 = 4
25−30
10 − 7 = 3
30−35
7 − 3 = 4
35−40
3
Thus, the frequency corresponding to the class 20−25 is 4.
| Profit (in lakhs ₹) | Number of shops |
| 5−10 | 30 − 28 = 2 |
| 10−15 | 28 − 16 = 12 |
| 15−20 | 16 − 14 = 2 |
| 20−25 | 14 − 10 = 4 |
| 25−30 | 10 − 7 = 3 |
| 30−35 | 7 − 3 = 4 |
| 35−40 | 3 |
Thus, the frequency corresponding to the class 20−25 is 4.
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