Write a letter to your grandfather celebrates his 90 th birthday next week write a letter to him expressing love and joy with him
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Write a letter to your grandfather celebrates his 90 th birthday next week write a letter to him expressing love and joy with him
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Answer:
5 is added to 100 observations each.
So =500=(5×100) is added.
Then divided by 100. ie 5.
So mean increases by 5 to become 55.
S.D will remain same because every observation increased by 5 and mean also increased by 5.
( standard deviation is the squareroot of the difference of mean and each observation divided by the number of observations )
(55,10)
Explanation:
Explanation:
5 × 500 = yx + xy = yx and xy