12.6 Select an Appropriate Display

• Different displays give different

information

• Different displays are more

appropriate in different situations

Course 1, Lesson 12-6

Statistics and Probability

Course 1, Lesson 12-6

Statistics and Probability

Type of Display

Best used to

Bar Graph

show the number of items in specific categories.

Box Plot

show measures of variation for a set of data, also
useful for very large sets of data.

Histogram

show frequency of data divided into equal intervals.

Line Graph

show change over a period of time

Line Plot

show how many times each number occurs.

1

Need Another Example?

Step-by-Step Example

1.

Which display allows you to tell the mode of the data?

The line plot shows each night’s data. The number of orders
that occurs most frequently is 27. The box plot shows the
spread of the data, but does not show individual data so it does
not show the mode.

Answer

Need Another Example?

Which display allows you to see whether or not the number of
injuries has steadily declined since 2006?

The line graph shows the change in the number
of injuries from year to year.

1

Need Another Example?

Step-by-Step Example

2.

A survey compared different brands of hair
shampoo. The table shows the number of
first choice responses
for each brand.
Select an
appropriate type
of display to
compare the
number of
responses.
Justify your choice.

These data show the number of responses for each brand. A bar
graph would be the best display to compare the responses.

Answer

Need Another Example?

The table shows the number of members in the school
orchestra from 2009-2012. Select an appropriate type of
display to compare the number of students in the orchestra
over the years. Explain your choice.

Sample answer: Since the table shows
change over a period of time, a line graph
would be best.

1

Need Another Example?

2

Step-by-Step Example

3.

Make an appropriate display of the data.

Draw and label horizontal and
vertical axes. Add a title.

Draw a bar to represent the
number of responses for
each brand.

Answer

Need Another Example?

The table shows the number of members in the
school orchestra from 2009-2012. Make an
appropriate
display of
the data.

Sample answer:

Multiple Choice

What statistical Displays shows how many times each number occurs?

• Bar Graph

• Box Plot

• Histogram

• Line graph

• Line Plot

Multiple Choice

What statistical Displays shows the number of items in specific categories?

• Bar Graph

• Box Plot

• Histogram

• Line graph

• Line Plot

Multiple Choice

What statistical Displays shows measures of variation for a set of data, also useful for very large sets of data?

• Bar Graph

• Box Plot

• Histogram

• Line graph

• Line Plot

Multiple Choice

What statistical Displays shows frequency of data divided into equal intervals?

• Bar Graph

• Box Plot

• Histogram

• Line graph

• Line Plot

Multiple Choice

What statistical Displays shows change over a period of time?

• Bar Graph

• Box Plot

• Histogram

• Line graph

• Line Plot