PRC-2 · Chapter 8 · Question 9 of 60
How is the Interquartile Range (IQR) formally calculated?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: B) Third Quartile (Q3) minus First Quartile (Q1)
Explanation
The Interquartile Range measures the spread of the middle 50% of the dataset. It is strictly calculated by subtracting the lower quartile (Q1) from the upper quartile (Q3).
More Statistical Measures of Data MCQs
- Q11Which of the following statements regarding the statistical measure of 'variance' is universally true?
- 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…