prepare a frequency distribution table 2,1,3,2,4,2,1,5,2,3,3,0,2,1,3,2,3,2,4,1,4,2,1,3,2,3,0,1,2,3,1,2,5,2,3,4,2,3,1,2
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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)
Step-by-step explanation:
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