Question

• A. 4.5
• B. 4.6
• C. 4.2
• D. 4.1

Answer 1

The correct option is B 4.6

$Mean\left(\overline{x}\right)=\frac{\sum f_i{x}_i}{N}$

$\sum f_i{x}_i=10+24+30+12+35=111$
$N=\sum f_i=5+6+6+2+5=24$

$Mean\left(\overline{x}\right)=\frac{\sum f_i{x}_i}{N}$ = $\frac{111}{24}$ = $4.6$