Question

M=$\{1,2,3,4,5,6,7\}$
Each number in set $N$ is generated by dividing each number in set $M$ by $2$. Calculate the arithmetic mean of numbers in $N$.

• A. $1$
• B. $\frac{3}{2}$
• C. $\frac{7}{4}$
• D. $2$
• E. $4$

Answer 1

The correct option is D $2$

Given,
$M=\{1,2,3,4,5,6,7\}$
Each number in set $N$ is generated by dividing each number in set $M$ by $2$
$N=\{0.5,1,1.5,2,2.5,3,3.5\}$
Arithmetic mean of numbers of set $N$ is $=$ $\frac{\{0.5+1+1.5+2+2.5+3+3.5\}}{7}=\frac{14}{7}=2$