CMA Final · Strategic Cost Management · Introduction to Tools for Data Analytics
A Pune retailer's daily sales (in units) for five days were 40, 44, 48, 52 and 66. What is the median of this data, and which statement about the mean is correct?
The median is 48, the middle value of the five sorted observations, and the mean is 250 divided by 5, which is 50. The mean exceeds the median because the unusually high value of 66 pulls the average upward.
- AMedian 48; mean 50, pulled above the median by the high value 66Correct
- BMedian 48; mean 46, pulled below the median
- CMedian 50; mean 48, equal to the median
- DMedian 52; mean 50, pulled above the median
Explanation
Sorted data is 40, 44, 48, 52, 66, so the middle (third) value is 48. The sum is 250, so the mean is 250/5 = 50. The outlier 66 pulls the mean above the median. Option with median 52 picks the wrong position.
Did you get it right without looking?
One question tells you little. A timed set on Introduction to Tools for Data Analytics shows your real accuracy, how long you take and where you lose marks.
More Introduction to Tools for Data Analytics questions
- A Bengaluru analyst builds a dashboard of customer records where 40 of 500 entries have a missing PIN code. Which data-quality measure is co…
- A Chennai logistics firm analyses delivery times (in hours) for six consignments: 4, 6, 6, 8, 10 and 12. Using the population formula, what …
- For a data set, the mean is ₹ 200 and the standard deviation is ₹ 30. What is the coefficient of variation?
- A cost analyst at an Indian auto-components firm records the monthly machine-hours and maintenance cost for five months: (10, 40), (20, 50),…
- A Jaipur manufacturer's analyst finds that a series of delivery times (days) has mean 10 and standard deviation 2, approximately normally di…
- A Chennai firm's analyst monitors daily order-processing time, which is approximately normally distributed with mean 30 minutes and standard…