Definitions
Examples
Word Problems
Formulas
100

Define the Mean. 

What is the average of a set of numbers? 

100

Find the mean: 

10, 12, 19, 15, 30

What is 17.2? 

100

In a math class, the lowest test score was 78 and the highest was 99. What is the range? 

What is 21?
100

What is the formula of range? 

What is Range = Max - min? 
200

Define the Median. 

What is the Middle value? 


200

Find the median: 

1, 8, 12, 4, 7, 4, 5

What is 8? 

200

In a zoo, we want to know the average weight of the penguins. Here are their weights: 70, 90, 64, 49, 82. What is the average. 

What is 71? 
200

What is the formula for the mean? 

What is Mean = sum of terms/number of terms? 

300

What does IQR stand for? 

Interquartile range 


300

Find the Mode: 

1, 9, 8 ,7, 4, 10, 16, 19, 4, 3, 7, 4

What is 4? 

300

In a sixth grade class, we want to know the age seen the most. Here are the ages of one class: 12, 11, 12, 12, 12, 11, 12, 11, 11, 11, 12

What is 12? 

300

What is the formula of mode? 

What is the most seen number? 
400

Define the range. 

What is the difference between the largest and smallest number?

400

Find the Range: 

43, 10, 8, 15, 40, 30, 9

What is 35? 

400

A teacher wants to know the average of three students in her class. If sally scored an 89, Roger scored a 90, and Sam scored a 69. What is the average. 

What is 82.66? 

400

What is the IQR formula? 

What is IQR = Q3 - Q1? 

500
Define the standard deviation? 

What is the amount of variation in a set of values? 

500

Find the mean, range, and mode: 

4, 9, 15, 16, 19, 20, 15


What is..

Mean - 14

Range - 16

Mode - 15

500

Mrs. Roberson needs some help. Her students have been struggling and she wants to know the range from test to test. She has given us the averages for each test. On test one, they scored an average of 85, on test two an 83, and on test three a 79. What is the range between the tests? 

What is 6? 

500

What is the formula of the Standard Deviation? 

What is...

we will not be using this in class, I just want you to see it.