Question

If each item is reduced by 2021 Standard deviation is? a. decreased b. Unchanged c. Increases 2 times d. Increased​

Answer 1

Answer:

I think so b. Unchanged

Explanation:

Thank you

Answer 2

Explanation:

Correct option is A)

⇒ If each item of a data is increased or decreased by the same amount.

⇒ The SD of the data remains unchanged.

∴ S.D of new set will be 6