Standard Deviation Answers

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What is the variance?

Answers:

Selection 1:864

Selection 2:29.4

Why does the formula use “n – 1” in the denominator?

The data is a sample and is expected to be more dispersed from the mean.

The data is a sample and is expected to be less dispersed from the mean.

The data is a population and is expected to be more dispersed from the mean.

The data is a population and is expected to be less dispersed from the mean.

Question text not available

Answers:

Blank 1:standard deviations

Blank 2:mean

The z-score is the number of [___] a data value is away from the [___].

Answer:

mean

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