|
|
|
|
|
|
|
|
|
|
Solution
|
Solution provided by AtoZmath.com
|
|
|
|
More than type Cumulative frequency table for grouped data calculator
|
1. Calculate the mean and standard deviation for the following distribution
| X |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
| f |
3 |
6 |
9 |
13 |
8 |
5 |
4 |
2. Calculate the mean and standard deviation for the following distribution
| Class |
50-55 |
45-50 |
40-45 |
35-40 |
30-35 |
35-30 |
20-25 |
| f |
25 |
30 |
40 |
45 |
80 |
110 |
170 |
|
Example1. Calculate More than type Cumulative frequency table from the following grouped data
| Class | Frequency | | 10 - 20 | 15 | | 20 - 30 | 25 | | 30 - 40 | 20 | | 40 - 50 | 12 | | 50 - 60 | 8 | | 60 - 70 | 5 | | 70 - 80 | 3 | Solution:| Class | Frequency | | 10 - 20 | 15 | | 20 - 30 | 25 | | 30 - 40 | 20 | | 40 - 50 | 12 | | 50 - 60 | 8 | | 60 - 70 | 5 | | 70 - 80 | 3 |
More than cumulative frequency can be obtained by adding to the other frequencies in the reverse order. | Class | Frequency | More than type | Cumulative Frequency | | 10 - 20 | 15 | More than 10 | 88 (= 73 + 15) | | 20 - 30 | 25 | More than 20 | 73 (= 48 + 25) | | 30 - 40 | 20 | More than 30 | 48 (= 28 + 20) | | 40 - 50 | 12 | More than 40 | 28 (= 16 + 12) | | 50 - 60 | 8 | More than 50 | 16 (= 8 + 8) | | 60 - 70 | 5 | More than 60 | 8 (= 3 + 5) | | 70 - 80 | 3 | More than 70 | 3 |
|
|
|
|
|
|
|
|