Contributor: Briana Pincherri. Lesson ID: 11289
Finding the MEDIAN doesn't MEAN you have to go into "math is too hard" MODE. With some video help and a wide RANGE of practice problems you'll even be able to find a missing value given just the mean!
Can you tackle some mean problems with a smile on your face? Let's find out in this lesson, with practice problems on mean, median, and mode!
To get started, let's do a quick review of mean, median, and mode.
What better way than with an example?
Find the mean, median, and mode for this set of data: 7, 8, 10, 12, 14, 6, 8, 9, 11, 10.
If you need a quick reminder of these terms, here it is:
Mean The average — add all the numbers in a set and divide by the total numbers in the set
Median Find the middle number when the numbers are listed from least to greatest (HINT: If there are two middle numbers, add them together and divide by 2)
Mode The number that appears the most in the set
And why not throw in an extra?
Range The highest number in the set minus the smallest number in the set
Okay, your turn! Figure out the mean, median, and mode of the data set above on a piece of paper. Then, come back and check your work. No peeking before you have tried!
6, 7, 8, 8, 9, 10, 10, 11, 12, 14 
Put the list of numbers in order from least to greatest 


6 + 7 + 8 + 8 + 9 + 10 +10 + 11 + 12 + 14 = 95 95 / 10 = 9.5 
MEAN First step: Add all numbers together MEAN Second step: Divide the sum by the number of numbers 


6, 7, 8, 8, 9, 10, 10, 11, 12, 14 9 + 10 = 19 19 / 2 = 9.5 
Median: Find the middle numbers, If there are two (there are here!), then add them together & divide by 2 
6, 7, 8, 8, 9, 10, 10, 11, 12, 14 
Mode: Which numbers appear the most? In this case, there are two, 8 and 10, which is completely okay. 
How did you do? Did you get the answer correct? If not, please try it again and look stepbystep at the explanations included. Once you feel ready, go to the Got It? section for some more practice.
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