Question

the mean of 9 observation
p, p+2,p+4,p+6, p+8, p-2, p-4, p-6 p-8 = 10.
Find the mean of least 5 observations. ​

Answer 1

Step-by-step explanation:

ATQ,

$\frac{p + p + 2 + p + 4 + p + 6 + p + 8 + p - 2 + p - 4 + p - 6 + p - 8}{9}$

$\frac{9p}{9} = 10$

$p = 10$

The mean of least 5 terms are

$\frac{p + p - 2 + p - 4 + p - 6 + p - 8}{5} = \frac{5p - 20}{5}$

$= \frac{5(10) - 20}{5} = \frac{30}{5} = 6$

Therefore, it is your answer.

I hope it helps you. If you have any doubts, then don't hesitate to ask.

Answer 2

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