Question

The mean of n value is ?
If a new value 28 in included
the
mean
become 9. find the
value of
n​

Answer 1

Answer:

numbers with averaej=8,

then add 28 & nu averaej=9 ???

averaej=sum/(num numbers)=sum/n

(sum+28)/(n+1)=9 & sum/n=8

equashun 1: sum+28=9n+9

eqiasjim 2 sum=8n

subtraks...28=n+9, so n=28-9, so n=19

sum=8*19=152, nu sum=152+28=180 & 180

Answer 2

Answer:

Jajshdbeb2jsisi

jssjjshdbdbebejsudhdhdbebs