The mean of the following frequency distribution is 50 Find f1 f2 f3 if f2 : f3 = 4 : 3:

The mean of the following frequency distribution is 21 1/7 . Find the value of f

The mean of the following frequency distribution is 50, but the frequencies f_1 and f_2 in class 20-40 and 60-80 respectively are not known. Find these frequencies. Given that the sum of frequencies is 120.

The mean of the following frequency distribution is 57.6 and the sum of the observations is 50. Find the missing frquencies f_(1) and f_(2) :

The mean of the following frequency distribution is 62.8 and the sum of all the frequencies is 50. Compute the missing frequency f_1 and f_2 . Class: 0-20 20-40 40-60 60-80 80-100 100-120 Frequency: 5 f_1 10 f_2 7 8

If the mean of the following distribution is 6, find the value of p. x: 2 4 6 10 p+5 f: 3 2 3 1 2

If the mean of the following distribution is 7.5, find the missing frequency f

The mean of the following distribution is 18. Find the frequency f of the class 19-21 .

If the mean of the following distribution is 6, find the value of p {:(x:, 2, 4, 6, 10, p+5), (f:, 3, 2, 3, 1, 2):}

The mean of the following distribution is 52 and the frequency of class interval 30-40 is f. Find f.

The mean of the following distribution is 50 but the frequency f_(1) and f_(2) in classes 20-40 and 60-80, resepectively are not known. Find these frequencies, if the sum of all the fequencies is 120