Question: 2.136 Multiple choice: Fact about s Which statement about the standard deviation s is false? a. s can never be negative. b. s can never

2.136 Multiple choice: Fact about s Which statement about the standard deviation s is false?

a. s can never be negative.

b. s can never be zero.

c. For bell-shaped distributions, about 95% of the data fall within xQ { 2s.

d. s is a nonresistant (sensitive to outliers) measure of variability, as is the range.

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