The mean is less than the median explained by One worker works much fewer hours than everyone else.
The correct option is (D)
The median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average.
Mean is a quantity that has a value intermediate between those of the extreme members of some set
Given data: 20, 40, 30, 36, 36, 40, 39, 36, 38.
Mean= 35 and median= 36
As, the median of a data is the middle number in given data set, after the values have been arranged in either an ascending or descending order.
and the mean is a weighted average of a data set.
We have a relatively low value of working hours, which shows that in the distribution, the worker who works only 20 hours, will affect the mean hours worked done by all the workers and make it lower than the median value.
Hence, One worker works much fewer hours than everyone else.
Learn more about this mean and median here:
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