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Question
Using the following data, construct a frequency distribution table:
46, 44, 42, 54, 52, 60, 50, 58, 56, 62, 50, 56, 54, 58 and 48.
Now answer the following:
- What is the range of the numbers?
- How many numbers are greater than 50?
- How many numbers are between 40 and 50?
Solution
| Marks | Tally marks | Frequency |
| 42 | | | 1 |
| 44 | | | 1 |
| 46 | | | 1 |
| 48 | | | 1 |
| 50 | || | 2 |
| 52 | | | 1 |
| 54 | || | 2 |
| 56 | || | 2 |
| 58 | || | 2 |
| 60 | | | 1 |
| 62 | | | 1 |
| Total | 15 |
(i) Range of numbers = Highest number – Lowest number
= 62 – 42 = 20
(ii) 9 numbers are greater than 50
(iii) 6 numbers are between 40 and 50
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