Question

If the mean of m,n,s,p and q is 12. Calculate the mean of (m-4), (n-3 ),(s-6), (p-2) and (q-8).​

Answer 1

7.4

Explanation:

1. according to the condition (m+n+s+p+q)/5=12, it means (m+n+s+p+q)=60;

2. the required mean can be calculated:

[(m-4)+(n-3)+(s-6)+(p-2)+(q-8)]/5=[(m+n+s+p+q)-23]/5=[60-23]/5=37/5=7.4.