Answer question number 23 Q.24. Calculate mean of the following data:
Values more than
100
Q.25. Find the missing value, if mean is 23.
15
Q.26. Find the missing frequency, if mean is 62.
Q.23. Find the average age of 500 people in a town.
[X -30
[X, = 25
Age (in yews)
No. of people
0-10
10-20
200
85
10
80-120
120
120-160
