The given table shows the rainfall in mm in different cities in India for a year.

$\begin{matrix} Cities & Rainfall (mm) Delhi & 44.6 Mumbai & 63.5 Kolkata & 60.7 Pune & 56.2 Bangalore & 60.1 Bhubaneswar & 49.4 Chennai & 61.7 Ooty & 56.9 Ahmedabad & 34.4 Jaipur & 32.5 \end{matrix}$

Find the mean rainfall in the year.

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Solution

The number of cities given are 10.

Sum of rainfall for the different cities = 44.6 + 63.5 + 60.7 + 56.2 + 60.1 + 49.4 + 61.7 + 56.9 + 34.4 + 32.5 = 520

Mean = $\frac{S u m o f o b s e r v a t i o n s}{N u m b e r o f o b s e r v a t i o n s}$

= $\frac{520}{10}$

= 52 mm

Hence the mean rainfall for the year is 52 mm.

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The given table shows the rainfall (in mm) in different cities in India for an year.

$\begin{matrix} Cities & Rainfall (mm) Delhi & 44.6 Mumbai & 63.5 Kolkata & 60.7 Pune & 56.2 Bangalore & 60.1 Bhubaneswar & 49.4 Chennai & 61.7 Ooty & 56.9 Ahmedabad & 34.4 Jaipur & 32.5 \end{matrix}$

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The given table shows the rainfall in mm in different cities in India for a year. CitiesRainfall (mm)Delhi44.6Mumbai63.5Kolkata60.7Pune56.2Bangalore60.1Bhubaneswar49.4Chennai61.7Ooty56.9Ahmedabad34.4Jaipur32.5 Find the mean rainfall in the year.

The number of cities given are 10. Sum of rainfall for the different cities = 44.6 + 63.5 + 60.7 + 56.2 + 60.1 + 49.4 + 61.7 + 56.9 + 34.4 + 32.5 = 520 Mean = Sum of observationsNumber of observations = 52010 = 52 mm Hence the mean rainfall for the year is 52 mm.