1. Warm-Up
Please draw a dot over the number of siblings you have. For example: If you have 3 siblings, place a dot over 3.

2. Unit 5 Day 2
Measures of Center

3. Measures of Center
A measure of center is one number that tells us about the data.
Commonly used measures are:
Mean
Median
Mode

4. MEAN (aka. AVERAGE)
To find the mean: 1. add the numbers up 2. divide by how many numbers there are

5. Example: Find the mean.
1,4,5,7,8

6. Median
To find the median: 1. put the numbers in order 2. find the middle number
What if two numbers share the middle?
Add them together and divide by 2.

7. Your turn! Find the median:
3,4,2,7,6
3,2,4,7,6,5

8. Mode
MODE shows up the MOST! Ex: 3, 4, 5, 3, 5, 7, 3, 6 Find the mode!

9. You try! Find the mean, median and mode for each set of data:
13,14,19,21 3) 24,25,26,21,21
2,4,8,6,4 4) 7,7,8,8,9,6,7,6