1. © 2007 M. Tallman

2. Find the mean of 7, 4, 5, 3. 7 4 6 3 20 5 5 5 5 Step 1: Add the numbers in the data set. Step 2: Divide the sum by the “number of numbers” in the data set. There are 4 numbers (7, 4, 6, & 3). Divide by 4. mean = 5 Step 3: Count how many numbers there are in the data set.

3. © 2007 M. Tallman Find the mean of 9, 4, 5. 9 4 5 18 6 6 6 Step 1: Add the numbers in the data set. Step 2: Divide the sum by the “number of numbers” in the data set. There are 3 numbers (9, 4, & 5). Divide by 3. mean = 6 Step 3: Count how many numbers there are in the data set.

4. © 2007 M. Tallman Find the mean of 8, 3, 6, 7. 8 3 6 7 24 6 6 6 6 Step 1: Add the numbers in the data set. Step 2: Divide the sum by the “number of numbers” in the data set. Divide by 4. mean = 6 Step 3: Count how many numbers there are in the data set. There are 4 numbers (8, 3, 6, & 7).

5. © 2007 M. Tallman Find the mean of 5, 3, 6, 4, 2 5 3 6 4 20 4 4 4 4 Step 1: Add the numbers in the data set. Step 2: Divide the sum by the “number of numbers” in the data set. Divide by 5. mean = 4 Step 3: Count how many numbers there are in the data set. There are 5 numbers (8, 3, 6, 4, & 2). 2 4

6. © 2007 M. Tallman 27 27 27 15 Find the mean of 15, 10, 2 Step 1: Add the numbers in the data set. Step 2: Divide the sum by the “number of numbers” in the data set. Step 3: Count how many numbers there are in the data set. + 10+2= 1 2 3 ) 3 9 mean = 9

7. © 2007 M. Tallman 30 3010 30 5 Find the mean of 10, 10, 3, 2, 5 Step 1: Add the numbers in the data set. Step 2: Divide the sum by the “number of numbers” in the data set. Step 3: Count how many numbers there are in the data set. + 10+3= 1 2 3 ) 5 6 mean = 6 + +2 4 5

8. © 2007 M. Tallman 25 25 2559 Find the mean of 5, 5, 3, 3, 9 Step 1: Add the numbers in the data set. Step 2: Divide the sum by the “number of numbers” in the data set. Step 3: Count how many numbers there are in the data set. + 5+3= 1 2 3 ) 5 5 mean = 5 + +3 4 5

9. © 2007 M. Tallman 32 32 32 102 Find the mean of 10, 11, 9, 2 Step 1: Add the numbers in the data set. Step 2: Divide the sum by the “number of numbers” in the data set. Step 3: Count how many numbers there are in the data set. +11= 1 2 ) 4 8 mean = 8 + +9 3 4