Question

calculate the mean and median of the following distribution
class=10-20,20-30,30-40,40-50,50,60
f=10,7,5,8,6​

Answer 1

10-20, 20-30, 30-40, 40-50,50,60

=-10, -10,-10,-10,50,60

mean= -10-10-10-10+50+60

= -40+110

=70

70÷6 = 11.7

median= -10-10÷2

-20÷2= -10

mode= -10

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