Question

For a certain distribution if sigma (x-20)=25,sigma (x-25)=0, and sigma (x-35)=-25 then bar x is equal to​

Answer 1

Answer:

system such Guddu Duff give me a call kar lo que me

Answer 2

Given :   ∑(x - 20) = 0

∑(x - 25) =  0

∑(x - 35) =  -25

To Find :   $\overline{x}$

Solution:

$\text{Mean}=\overline{x}=\frac{\sum\limits_{i=1}^{n}{{{X}_{i}}}}{n}$

∑(x - 25) =  0

=> ∑x  -  25n  = 0

=>  ∑x = 25n

=> ∑x / n = 25

=> $\overline{x}=25$

Hence $\overline{x}=25$

Learn More:

The mean mark of 8 students is 65.If marks of 7 students are 60, 70 ...

brainly.in/question/14093807

the mean of the marks scored by 12 students of a class is 67.4.if the ...

brainly.in/question/12256497

The marks obtained by 12 students in a mathematics examination ...

brainly.in/question/7400083