Marianna wants to compare the relative extent to which sales of two companies products have changed over the past 10 years. She has obtained sales data from both companies for each of the past ten years. Which statistic will best allow her to do this?
A) Index numbers
B) Coefficient of variation
C) Index variation
D) Change index

Question

Quizplus · Accepted Answer

Index numbers are used to compare the relative change in sales over time, allowing Marianna to assess the extent of change for each company's products over the past 10 years.

Marianna Wants to Compare the Relative Extent to Which Sales