ANSWER #1 of 3

The mean of the data set is its average.

To find the mean you add up all the numbers and divide the answer by how many numbers you have.

Try it! Add (1, 2, 3, 4, 5) on the calculator and then divide the answer by 5. (The / key means divide.)

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The Median is the number which is in the exact middle of the data set.

In our sample set (1, 2, 3, 4, 5), 3 is the number which is exactly in the middle, so 3 is the median of this set.

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The Mode is the number that appears the most often if you are working with only one variable.

We are working with one variable, a set of numbers. To show how to figure out the mode, we need to change our sample set because each number only appears once in it.

THE NEW SAMPLE SET: (2, 4, 4, 6, 8, 10).

4 appears more than any other number in this set so 4 is the mode of the set.

ANSWER #2 of 3

I agree with the person above me...look it up in a middle school math book!It is in there,don't worry about it.Try 6th grade or maybe even 7th or 5th.

ANSWER #3 of 3

The mean is the average of a set of number, also known as the arithmetic mean.

Median is the middle value of a set of data when it is arranged in ascending order. If there happens to be two middle numbers, the median is taken to be the average of the two numbers.

Mode is the value at which it occurs most frequently.