PRC-2 · Chapter 8 · Question 12 of 60
If you multiply every observation in a dataset by a constant 'k', what will happen to the new standard deviation?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: B) It is multiplied by k.
Explanation
Standard deviation is affected by a change of scale. If every value is multiplied by a constant 'k', the standard deviation of the new set is exactly the old standard deviation multiplied by 'k'.
More Statistical Measures of Data MCQs
- Q14For a symmetrical (normal) distribution curve, which relationship between the mean, median, and mode is correct?
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- Q18Which of the following statements accurately describes a skewed distribution curve?