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:

24

Step-by-step explanation:

€fx=1228+18p

€F=76+p

p=24.

Answer 2

Answer:

p=24

Step-by-step explanation:

Mean= €fx/€f

166/10= 1228+18p/76+p

12616+166p=12280+180p (after cross-multiplying)

12616-12280=180p-166p

336=14p

p=336/14

p=24