Can someone explain to me how to find mean/median of a data set real quick?

The median of a set of data is the middlemost number in the set. The median is also the number that is halfway into the set. To find the median, the data should first be arranged in order from least to greatest.

To find the mean, add up all of the numbers in the set and divide by the number of values that you added. Then, divide by the number of values

Explanation:

Roots of real numbers can be represented by radicals or by exponents.

First, I present some examples to show how exponents and radicals are related, and then generalize.

When you write 5² = 25, then 5 is the square root of 25.

And in general, if n is a positive integer and , then is the nth root of x.

Also, if n even (and positive)  and is positive, then   is the positive nth root of

Thus,