Question

Find the mean for the following distribution by short cut method:
Numbers 60,61,62,63,64,65,66
Cumulative frequency
8,18,33,40,49,55,60
plz do it fast and no bakwaas...only solution!!!!..or else i will report!​

Answer 1

Stemedian = (first value + last value)/2

(60+66)\2

126\2=63

cummulative frequency= 60+61+62+63=246