CA Foundation P3 · Chapter 14 · Question 6 of 10
The largest and smallest values of a data set are 80 and 20. The coefficient of range is:
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: D) 0.6
Explanation
Coefficient of range = (L − S)/(L + S) = (80 − 20)/(80 + 20) = 60/100 = 0.6. 60 is the range itself, and 0.75 is (L − S)/L.
More Measures of Central Tendency and Dispersion MCQs
- Q8A distribution has mean 50 and standard deviation 8. The coefficient of variation is:
- Q9The standard deviation of x is 5. If y = 3 − 2x, the standard deviation of y is:
- Q10Group I has 40 items with mean 50 and SD 6. Group II has 60 items with mean 60 and SD 8. The combined standard deviation is (to two…
- Q1A student scores 60, 75 and 80 in three papers carrying weights 2, 3 and 5 respectively. The weighted mean score is:
- Q2The median of 23, 11, 37, 19, 42, 28 is: