If a constant number 5 is added to every observation in a dataset, how does the arithmetic mean change?

Type: MCQ • Marks: 1

A. It remains unchanged.

B. It increases by 5 divided by the total number of items.

C. It is multiplied by 5.

D. It increases by 5.

Explanation

Adding a constant 'k' to all observations increases the mean by 'k'.

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Class 7th Ganita Prakash 2

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