Click the mouse button or press the Click the mouse button or press the Space Bar to display the answers.Space Bar to display the answers.

Construct and interpret line plots

Objective

Line plot

Vocabulary

Shows the frequency of data on a number line

Cluster

Vocabulary

A group of data close together

Outlier

Vocabulary

Data that is separated from the rest of the data

Range

Vocabulary

The difference between the greatest and least numbers in the data set

Example 1 Make a Line Plot

Example 2 Use a Line Plot to Analyze Data

Example 3 Use a Line Plot to Analyze Data

PRESIDENTS The table below shows the ages of the U.S. presidents at the time of their inaugurations. Make a line plot of the data.

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Determine the smallest number

Determine the largest number

Range is

42 to 69

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Determine a scale and interval for the number line

To include both numbers begin at 40 and end at 70

EASY NUMBERS

Range is 42 to 69

Note: Only numbered by 5’s but put the hash marks equal distance for all

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Plot data by putting an x above the number for each piece of data

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×××

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××

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×

×

Answer:

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STUDY TIME The table below shows the number of minutes each student in a math class spent studying the night before the last math exam. Make a line plot of the data.

Minutes Studying

36 42 60 3570 48 55 3260 58 42 55

38 45 60 50

Answer:

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CLIMATE The line plot shows the number of inches of precipitation that fell in several cities west of the Mississippi River during a recent year. What is the range of the data?

Answer: The range 45 inches.

Range = Greatest - Least

Range = 50 - 5

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Write formula for rangeFind greatest numberRange = 50 Find least number

Range = 45Subtract

AGE The line plot below shows the ages of students in an introductory computer course at the local community college. What is the range of the data?

Answer: Range = 26 years

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Identify clusters, gaps, and outliers if any exist in the line plot below and explain what they mean.

There are data clusters between 11 and 13 inches and between 16 and 18 inches.

Gap is from 18 to 23 and 27 to 32

Outliers could be 5 and 50 but they are not necessarily separated from other data

Answer:

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Identify clusters, gaps, and outliers if any exist in the line plot below and explain what they mean.

Answer: The cluster is from 18 to 30.

There is a gap between 30 years and 44 years.

The outlier is 44

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Assignment

Lesson 2:3 Line Plots 5 - 21 All