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प्रश्न
Find the mean of first 10 prime numbers.
उत्तर
The first 10 prime numbers are:
2,3,5,7, 11, 13, 17, 19,23,29
`barx = (x_1 + x_2 + x_3 + .... +x_n)/n`
n = 10
⇒ `barx = (2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29)/10`
⇒ `barx = 129/10`
⇒ `barx = 12.9`
Therefore , Mean of first 10 prime numbers = 12.9
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