the mean of the following s 62.8 and the sum of all frequency is 50.Find the value of x&y.
CI fi
0-20 5
20-40 x
40-60 10
60-80 y
80-100 7
100-120 8
@Gurpreet1singh85: Good efforts ! Well done. Keep posting..!!
But the values of x and y should be x = 8 and y =12.