PRC-2 · Chapter 8 · Question 10 of 60
A dataset contains the values 10, 10, 10, 10, and 10. What is the standard deviation of this set?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) 0
Explanation
Standard deviation measures the dispersion or spread of data around the mean. Since all values are identical, there is absolutely no variation, meaning the standard deviation is 0.
More Statistical Measures of Data MCQs
- Q12If you multiply every observation in a dataset by a constant 'k', what will happen to the new standard deviation?
- Q13Which measure of central tendency is defined as the value that appears most frequently in a given dataset?
- Q14For a symmetrical (normal) distribution curve, which relationship between the mean, median, and mode is correct?
- Q15The mean of 5 observations is incorrectly recorded as 40. Upon review, it was found that a value of 25 was mistakenly read as 50. What is…
- Q16If a researcher multiplies every single observation in a dataset by exactly 5, what will mathematically happen to the arithmetic mean of…