Examlex
When consider online advertising efficiency, marketers often evaluate vendor options using a metric called cost per thousand (CPM). How is the metric calculated?
Mean
The mean value, determined by dividing the total sum of numbers in a series by the quantity of numbers in that series.
Median
The middle value in a sorted list of numbers, or the average of the two middle numbers when the list has an even number of entries.
Standard Deviation
An approach to quantifying how much a group of numbers disperses or varies from each other.
Mean
The arithmetic average of a set of numbers, calculated by adding them together and dividing by the number of values.
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