Question

What’s the answer to the question

Answer 1

Option C:

Mean = 2.31

Solution:

Given data:

Number (x)    : 0     1      2      3     4

Frequency (f) : 5   15   22    40     6

To find the mean of the given data:

$\text{Mean} =\frac{\Sigma fx}{\Sigma f}$

$\text{Mean} =\frac{(0\times 5)+ (1\times15)+(2\times22)+(3 \times40)+(4\times6)}{5+15+22+40+6}$

        $=\frac{0+ 15+44+120+24}{88}$  

        $=\frac{203}{88}$

       = 2.306

       = 2.31

Mean = 2.31

Option C is the correct answer.