Question

30. The mean of the following distribution is 18. Find the frequency of the class 19-21
Class
11-13
21-23
23-25
13-15
15-17
17-19
19-21
3
5
Frequency
6
9
13
​

Answer 1

Answer:

- 20

21 - 50

51 - 70

71 - 80

81 - 100

frequency

6

12

30

14

7

Step-by-step explanation:

- 20

21 - 50

51 - 70

71 - 80

81 - 100

frequency

6

12

30

14

7