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Median

Ten students ...

Question

Ten students collected the following amounts (in rupees) for an orphanage : 250, 450, 500, 750, 300, 650, 200, 350, 500, 560
Find their mean and median.

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Solution

The data is $250, 450, 500, 750, 300, 650, 200, 350, 500, 560$
Sum of observations $4510$
Mean of data is $\frac{4510}{10} = 451$
Ascending order is $200, 250, 300, 350, 450, 500, 500, 560, 650, 750$
Median is average of middle elments
$\frac{450 + 500}{2} = 475$

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