if each number is increased by 5 what will happen to their mean
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if each number is increased by 5
their mean is also increased by 5
their mean is also increased by 5
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If each observation of the data is increased by 5, then their mean
(a) remains the same
(b) becomes 5 times the original mean
(c) is decreased by 5
(d) is increased by 5
Thinking Process
First, add 5 on each term of an observation, then use the formula for mean

Further, simplify it to get the required result.
(a) remains the same
(b) becomes 5 times the original mean
(c) is decreased by 5
(d) is increased by 5
Thinking Process
First, add 5 on each term of an observation, then use the formula for mean

Further, simplify it to get the required result.
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