CMA Foundation · Fundamentals of Business Mathematics and Statistics · Measures of Central Tendency and Dispersion
The monthly sales (in ₹ thousand) of a Pune retailer over five months were 42, 38, 50, 45 and 55. What is the arithmetic mean monthly sales?
The arithmetic mean is 46 thousand rupees. Adding the five monthly sales gives 230, and dividing this total by the five months gives 46. The figure 45 is the median, which is a different measure of central tendency.
- A44
- B46Correct
- C48
- D45
Explanation
Sum = 42+38+50+45+55 = 230. Mean = 230/5 = 46. The value 45 is the median of the sorted data (38,42,45,50,55), not the mean.
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