The standard deviation of 20 numbers is... - Solved | MCA Prep

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Question 14

Mathematics Statistics Easy

The standard deviation of 20 numbers is 30. If each of the numbers is increased by 4, then the new standard deviation will be

(A) 24

(B) 34

(C) 30

(D) 20

✓ Correct Answer: Option C Verified Solution

📘 Step-by-Step Solution & Detailed Explanation:

Standard deviation does not change when we increase or decrease each number by a constant, hence it will remain 30.

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