Mean, Median, Mode, and Range

The ______ (otherwise known as the "average") of a data set is the total of all the values, divided by the number of values.

The ___________ is the middle number in a list of numbers ordered from least to greatest.

The ________ is the value that appears most often in a set of data.

The _________ is the difference between the smallest value and the largest value in a set of data.

Find the mean of the data:

 $5,\ 2,\ 8,\ 3,\ 12$  

Find the mode of the data:

 $3,\ 6,\ 7,\ 7,\ 8,\ 11$  

• 3

• 6

• 7

• 8

• 11

Find the median of the data:

 $21,\ 45,\ 62,\ 78,\ 34,\ 98,\ 37$  

Find the range of the data:

 $102,\ 3,\ 84,\ 340$  

Ms. LeMay's math students took a test and received the following test scores:

 $72,\ 80,\ 91,\ 53,\ 83,\ 70,\ 81,\ 30$  
What was the class average on the test?

A survey question asked a group of families how many household pets they had. The results are below:

 $0,\ 5,\ 1,\ 2,\ 1,\ 0,\ 2,\ 1,\ 0$  

Find the mode(s) of the set of data.

• 0

• 1

• 2

• 5