Line Plot Lesson 2023-24

Line Plots
(AKA Dot Plots)

A graph that shows the frequency, or the number of times, a value occurs in a data set.

Building a Dot Plot

Building a dot plot is just a matter of plotting data points on a number line and stacking any duplicates. It's important that your number line be evenly spaced, so it's alright for there to be gaps.

The data set doesn't even have to be ordered at first, but you will follow the natural order of the number line as you place your dots. Create a number line that will fit all the data and place a dot above the number for each value in the data set.

Multiple Choice

How many people have 4 or more pets?

• 8

• 3

• 6

• 4

Multiple Choice

How many people exercised for at least 3 hours?

• 2

• 7

• 6

• 3

Multiple Choice

How many students scored 93% or less?

• 6

• 16

• 14

• 13

Multiple Choice

What is the maximum amount of goals scored?

• 3

• 1

• 0

• 7

Multiple Choice

What was the median number of hours spent playing video games?

• 5

• 6

• 7

• 9

Multiple Choice

What is the median number of goals scored?

• 3

• 3.5

• 4

• 5

Fill in the Blank

What is the spread of the data set?

Note: The "spread" is also known as the "range" of a data set.

Fill in the Blank

How much larger is the spread of the hours playing video games than the hours exercising?
Note: The "spread" is also known as the "range" of a data set.

Multiple Choice

Which statement is best supported by the information in the dot plots

• The median of the data is the same for both data sets

• The mode of the data is the same for both data sets

• The range of the data is the same for both data sets

• The distribution of the data is the symmetrical for both data sets

Multiple Choice

Which statement is best supported by the information in the dot plots

• The two populations have different mode weights

• The two populations have different median weights

• The data for the two populations have different skews

• The data for the two populations have different ranges

Multiple Choice

How many students scored between 95 and 100?

• 6

• 6

• 9

• 14

Multiple Choice

How many students received a score in the 80's?

• 2

• 10

• 14

• 27

Multiple Choice