Question

THE FREQUENCY DISTRIBUTION OF 60 STUDENTS IN THE CLASS IS GIVEN BELOW . IF THE MEAN OF THE DATA IS 157,FIND THE MISSING FREQUENCIES X AND Y
HEIGHT(IN CM) = 144-148 148-152 152-156 156-260 160-164 164-168
NO.OF STUDENTS = X 8 15 Y 16 6

Answer 1

Answer:

8+15+16+6+X+Y = 60

X+Y = 60 - 8+15+16+6

X+Y = 60- 45

X+ Y = 15

X = 15-Y