A:### Quick Answer

**According to Oxford University's Medical Sciences Division, the mean is the average value of a group of numbers, the median is the middle value in an ordered list of values and the mode is the most common number that appears in that numerical group or list.** So, for a list of values such as 2, 3, 3, 6, 7, 8, 11, the mean (or average) would be 5.71, the median (or middle value) would be 6 and the mode (or most common value) would be 3.

The mean of a set of numbers is calculated by adding all of the numbers together and dividing by the number of numbers given. In the example above, the sum of the seven numbers is 40; when divided by seven, the number of values given, the correct answer is calculated. This is the only value of the three that requires arithmetic.

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- Q:
## What is the formula for arithmetic mean?

A:

Full Answer >**The formula for the arithmetic mean of a group of numbers is A = S/N, where S represents the sum of all the numbers in the group, and N represents the total number of items in the group.**Finding the arithmetic mean is essentially the same as taking the average.Filed Under: - Q:
## What is median vs. mean?

A:

Full Answer >**The median is the middle number when a set of numbers is arranged in order from smallest to largest, and the mean is the average of a set of numbers.**Both these measurements are useful in performing statistical analyses of a number grouping and making projections about future results.Filed Under: - Q:
## What does "median" mean in mathematics?

A:

Full Answer >**The median is the number that is in the middle in a list of sorted numbers.**To find the median, the numbers must be sorted from lowest to highest.Filed Under: - Q:
## What does it mean when your computer monitor is in "power save" mode?

A:"Power save" mode in electronics is a way to conserve energy or battery life when the item is left on but not in use. In the context of a monitor, this means the display is temporarily turned off until a user presses a key or moves the mouse.

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