2. Mean, Median, Mode, and, and Range By: Jacob Fowler and Cassie Gallman

3. Mean Mean is an average found by using division. The items in data set are added together, and then the sum is divided by the numbers of items. Step 1: Add all the numbers together. Step 2: Then divide the sum by how many numbers there are. Step 3: Then you will get your answer. EX. 3,4,7,1,6 1. 3+4+7+1+6= 21 2. 21/5= 4.2

4. Median Median is the middle number in an ordered data set. Step 1: List the numbers from least to greatest or greatest to least. Step 2: Find the number in the middle. Step 3: If there is no median find the mean of the two middle numbers. Ex. 1, 2, 3, 4, 5, 6 3 is your Median

5. Mode Mode is the number that occurs most often in a data set. Step 1: Look at the numbers, look to see if any occur more than once. Step 3: Then that number is your Mode. EX. 2, 3, 7, 4, 7 7 is your Mode

6. Range Range is the difference between the highest number and the lowest number. Step 1: You put the numbers in order from least to greatest. Step 2: You subtract the littlest number from the biggest number. That is your Range. Ex. 3, 2, 4, 7, 10 1.3, 2, 4, 7, 10 2.10 – 2= 8

7. Box and Whisker Plot Median and range is also used in box and whisker plots.

8. Box And Whisker Plot In a box and whisker plot the MEDIAN is used to find the number in the middle of the box and whisker plot. In a box and whisker plot, RANGE is used to find the difference between the highest and lowest number of the box and whisker plot.

9. THANK YOU!!!!! That is Mean, Median, Mode, and range and how you use them. These are some of sites you can use. Brain Pop, Regentsprep.org, Purplemath.com.