Related Questions
The mean of the following distribution is 62.8 and the sum of all the frequencies is 50. Find the missing frequencies f1 and f2.
Class Frequency 0 - 20 5 20 - 40 f1 40 - 60 10 60 - 80 f2 80 - 100 7 100 - 120 8 Calculate the mean of the distribution, given below, using the short cut method :
Marks No. of students 11 - 20 2 21 - 30 6 31 - 40 10 41 - 50 12 51 - 60 9 61 - 70 7 71 - 80 4 The median of 3, 8, 11, 2, 16, 4, 0 and 6 is :
6
9
5
8
Numbers 5, 15, 20, x, 28, 30, 35 are in ascending order and have median = 23; then the value of x is :
24
29
17.5
23