8002 practice question 8 of 25
Which of the following statements about variance and standard deviation are correct? 1. When calculated based on a sample of the population data, one…
Choose your answer, then check it against the explanation.
Which of the following statements about variance and standard deviation are correct?
1. When calculated based on a sample of the population data, one has to correct for any bias in the
result by using the number of degrees of freedom in the calculation
2. Variance is in square root units of the underlying data, whereas standard deviation is in units of the
underlying data
3. When considering independent variables, variance is additive, while standard deviation is not
Question 8 of 25
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