Math, asked by Rabie, 1 year ago

Pls solve this in full steps

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Rabie: can anyone answer this questio

Rabie: if the picture is not clear i am writing the question here

Rabie: if x1, x2, ...........xn are n values of a variable x such that sigma i=1 to n (xi - 2) = 110 & sigma i=1 to n (xi -5). Find the value of x and its mean

Rabie: can anyone report this question so that i get my points back and i have got the answer now as there nobody willing to answer

Answers

Answered by kvnmurty

There is some data missing here.
The value of Sigma (xi - 5) = should be given.... Let us say it is A.
Let the mean be μ.

We have Sigma (xi - 2) = 110 --- (1)
Sigma (xi - 5) = A ----(2)

(1) - (2) gives : Sigma (5 - 2) = 110 - A
n * 3 = 110 - A
n = (110 - A)/3

(1) can be rewritten as: n μ - 2 n = 110
so (110-A)/3 * (μ - 2) = 110
μ - 2 = 330/(110 - A)
μ = (550 - 2A) / (110 - A)
= 5 + 3A/(110-A)

If we know the value of A (missing from the question), then we have the answer.

kvnmurty: click on red heart thanks above pls

abhi178: thank you sir , i think also this

Rabie: sir pls check the comments of the question

kvnmurty: thanks for selecting brainliest. nice of you

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