Transcript Frequency tables and line plots

How do I create and
interpret frequency tables
and line plots?
Click to activate…
Frequency Table – a table that displays
the number of times each item or category
occurs in a data set.
Line Plot – a number line diagram that uses
X marks to show the frequencies of items being
tallied.
# of Books
1
2
3
4
5
6
7
Tallies
llll
llll
llll l
ll
Frequency
5
5
6
2
llll
4
students
Create a frequency table with data from
the class.
What is your favorite food?
Spaghetti, Mac and Cheese or Chicken
How many TV’s do you have in your home?
0,1,2,3,4,5
We can use our data to make a line plot.
When the items being tallied are numbers, a line plot
can be used to visually display numerical data. A line
plot uses X marks above a number line to show the
frequencies.
X
The Number Line X
shows the number X
of books read.
X
X
1
X
X
X
X
X
X
X
X
X
X
X
The X marks above
the number line show
the frequencies.
X
X
X
X
X
X
2
3
4
5
Number of Books Read
6
7
› Outliers-Unusually high or low values in
a distribution.
› Clusters-A group of data values with
higher frequency than surrounding
values.
› Gaps-Areas in the scale where there is
a lack of data values.

Create a frequency table and line plot
from the information below.

How many pets do you have?

Data: 3,4,4,4,5,0,1,2,2,1,4,4,3,2,2,1