Question

I'm not getting the mean as 66.4 after plotting it in the graph can anyone help me

Answer 1

median=l+(n/2-cf)/f *h
l=60
n/2=53/2=26.5
cf=22
f=7
h=10

median=60+(26.5-4)/7 *10
=60+45/7
=60+6.4
=66.4