A set of observations x₁, x₂, x₃, x₄, has a standard deviation = 6. Each

Question

A set of observations x₁, x₂, x₃, x₄, has a standard deviation = 6. Each of these observations is added with a constant k. What is the new standard deviation?

Options:

A . 10

B . 8

C . 6

D . 4

Answer: Option C
Answer: (c).6

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