Calculate More than type Cumulative frequency table from the following grouped data
Class | Frequency |
15 - 20 | 3 |
20 - 25 | 9 |
25 - 30 | 14 |
30 - 35 | 20 |
35 - 40 | 35 |
40 - 45 | 9 |
45 - 50 | 6 |
50 - 55 | 2 |
55 - 60 | 2 |
Solution:
Class | Frequency |
15 - 20 | 3 |
20 - 25 | 9 |
25 - 30 | 14 |
30 - 35 | 20 |
35 - 40 | 35 |
40 - 45 | 9 |
45 - 50 | 6 |
50 - 55 | 2 |
55 - 60 | 2 |
More than cumulative frequency can be obtained by adding to the other frequencies in the reverse order.
Class | Frequency | More than type | Cumulative Frequency |
15 - 20 | 3 | More than 15 | 100 (= 97 + 3) |
20 - 25 | 9 | More than 20 | 97 (= 88 + 9) |
25 - 30 | 14 | More than 25 | 88 (= 74 + 14) |
30 - 35 | 20 | More than 30 | 74 (= 54 + 20) |
35 - 40 | 35 | More than 35 | 54 (= 19 + 35) |
40 - 45 | 9 | More than 40 | 19 (= 10 + 9) |
45 - 50 | 6 | More than 45 | 10 (= 4 + 6) |
50 - 55 | 2 | More than 50 | 4 (= 2 + 2) |
55 - 60 | 2 | More than 55 | 2 |
This material is intended as a summary. Use your textbook for detail explanation.
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