2. Mean: The AVERAGE values of a set of numbers. The mean is found by ADDING all of the values, then DIVIDING by the number of values in the set of data.

3. Calculate the Mean: 2 +4 +4 +30 10 Mean = $3 $2$4 $1$3$2$4$2 $6 1 +3 +2 +2 +4 +2 +6 =

4. Median: The MIDDLE number in an ORDERED set of data, either from LEAST to GREATEST OR from GREATEST to LEAST.

5. Calculate the Median: $2$4 $1$3$2$4$2 $6 1, 2, 2, 2, 2, 3, 4, 4, 4, 6 2 + 3 2 = 5 2 =2.5

6. Mode: The number that occurs most OFTEN. There may be NO mode, ONE mode, or MORE than one mode for a set of data.

7. Calculate the Mode: $2$4 $1$3$2$4$2 $6 Mode = 2

8. Range: The DIFFERENCE between the LARGEST and the SMALLEST number in the set of data.

9. Calculate the Range: $2$4 $1$3$2$4$2 $6 6 -1 =5