Question

If the mean of the following observations is 16.6 find the numerical value of p
variate (xi) 8,12,15,18,20,25,30
frequency (fi) 12,16,20,p,16,8,4​

Answer 1

Answer:

16.6=1228+18p/76+p

1261.6+16.6p=1228+18p

1.4p=33.6

p=4