Chapter 12 Review

What is a histogram?

• A type of bar graph that shows the frequencies of data in intervals

• A table that uses numbers to record data about how often an event occurs

• A graph that shows the frequency of data along a number line

• A graph

What is frequency?

• Information collected about people or things, often to draw conclusions about them

• The sum of a set of data items divided by the number of data

• The number of times an event occurs

• A value much higher or much lower than the other values in a data set

What is a bar graph?

• A graph that uses line segments to show how data changes over time

• A graph that uses horizontal or vertical bars to display countable data

• A graph that shows frequency of data along a number line

• A single value used to describe the middle of a data set

What is an outlier?

• A single value used to describe the middle of a data set

• A graph

• A value much higher or much lower than the other values in a data set

• I need a calculator

What's the mean?

Data: 5, 16, 8, 9, 20, 25, 19, 2

• 10

• 104

• 12

• 13

What is the outlier?

Data: 34, 25, 5, 67, 55, 35, 66

• 67

• 55

• 25

• 5

How do you find the mean?

• Subtract all the data, then multiply by the number of data

• Add up all the data, and then divide by the number of data

• Divide all

• Multiply all

What's the mode?

Data: 24, 13, 12, 15, 13, 24, 8, 12, 2, 4, 7, 29, 12, 24, 45, 5, 24

• 24

• 3

• 48

• 29