# Ex.3.1 Q4 Data Handling - NCERT Maths Class 7

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## Question

A cricketer scores the following runs in eight innings:

$$58, 76, 40, 35, 46, 45, 0, 100$$

Find the mean score.

## Text Solution

What is known?

Runs in eight innings.

What is unknown?

Mean Score

Reasoning:

\begin{align}\text{Mean of score}=\frac{\text{Sum of all runs}} {\text{Number of innings }}\end{align}

Steps:

\begin{align}\text{Total number of innings}& = 8 \\ {\text{Scores of cricketer in 8 innings}}& = 58,76,40,35,46,45,0,100\end{align}

\begin{align}{\text{Mean of score}} &= \frac{{58 + 76 + 40 + 35 + 46 + 45 + 0 + 100}}{8}\\ &= \frac{{400}}{8}\\ &= 50\end{align}

Thus, the mean score of a cricketer in $$8$$ innings is $$50.$$

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