Question

value of x.
10-30
30-50
50-70
70
Class
15
18
25
Frequency
Compute the mean of the following frequency distri
Class
0-20
20-40 40-60 60-80 80-100
If the mean of 5 ObservatioIS , 2, X+4, X + 6 and x +
If the mean of 25 observations is 27 and each observati
by 7, what will be the new mean?
Compute the mean of the following frequency distribu​

Answer 1

Answer:

first you reply me which standard this question and follow me for questions 2 standard 8 to 10