CIMA BA1 · Chapter 9 · Question 5 of 11
A set of data has a mean of 40 and a standard deviation of 6. What is the coefficient of variation?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) 15%
Explanation
Coefficient of variation = standard deviation / mean x 100% = 6 / 40 x 100% = 15%. It is a relative measure of dispersion, useful for comparing the variability of data sets with different means.
More Summarising and analysing data MCQs
- Q7Big data is commonly described by reference to which of the following characteristics?
- Q8A researcher divides a population of customers into groups by region and then selects a random sample from each region in proportion to…
- Q9The lower quartile of a distribution is 24 and the upper quartile is 40. What is the quartile deviation (semi-interquartile range)?
- Q10Branch A has 20 employees with a mean weekly wage of $600. Branch B has 30 employees with a mean weekly wage of $700. What is the mean…
- Q11The number of faulty items found in each of 30 batches inspected was: 0 faulty items: 6 batches 1 faulty item: 9 batches 2 faulty items…
