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Find the mean of the following set of numbers: 6, 9, 11, 12 and 7 - Mathematics

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प्रश्न

Find the mean of the following set of numbers:  

 6, 9, 11, 12 and 7

योग
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उत्तर

`barx = (x_1 + x_2 + ...... + x_n)/n` 

Here, n = 5, 

∴ `barx = (6 + 9 + 11 + 12 + 7)/5`

= `45/5`

= 9 

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