Question

£fixi=1390, £fi=35, then Mean=?
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Answer 1

Answer:

The answer is 39.71

Step-by-step explanation:

Formula to calculate mean is

                 $\text{Mean}=\dfrac{\sum f_ix_i}{\sum f_i}$

Here given $\displaystyle \sum f_ix_i=1390$ and $\displaystyle \sum f_i=35$.

Therefore using above formula, required mean is

                                      $=\dfrac{1390}{35}=\dfrac{278}{7}=39.71$