7th Grade Math

518 Statistical Displays

DATA SENSE For each graph, find the missing values.

10.

Food



Toys



Grooming

Supplies

Y

Vaccinations



Other



Dog Expenses 11.

)PVTJOH



$BS



'PPE



0UIFS

Y

6UJMJUJFT



$MPUIJOH



Family Budget

Select an appropriate type of graph to display each set of data: line graph,

bar graph, or circle graph. Then display the data using the graph.

12. Top 5 Presidential Birth States
    Place Presidents
    Virginia 8
    Ohio 7
    Massachusetts 4
    New York 4
    Texas 3


13. Tanya’s Day
    Activity Percent
    School 25%
    Sleep 33%
    Homework 12%
    Sports 8%
    Other 22%


14. GEOGRAPHY Use the table.
    a. Display the data in a circle graph.

Sizes of U.S. Great Lakes

Lake Size (sq mi)

Erie 9,930

Huron 23,010

Michigan 22,400

Ontario 7,520

Superior 31,820

b. Use your graph to find which two lakes

equal the size of Lake Superior.

c. Find the median size of the Great Lakes.

1515 POLITICS A group of students Political Decisions

Yes

73%

(366 students)

No

25%

(126 students)

Not Sure

2%

(10 students)

was asked whether people their

age could make a difference in

the political decisions of elected

officials. The results are shown

in the graph.

a. How many students

participated in the survey?

b. Write a convincing argument

explaining whether or not it is

reasonable to say that 50% more

students said they could make a

difference than those who said

they could not make a difference.

16. MATH IN THE MEDIA Find some data in a newspaper or magazine, on
    television, or on the Internet that can be displayed in a circle graph. Then
    display the data in a circle graph and write a statement analyzing the data.

S

b

1

Bar Graphs and

Line Graphs

Bar graphs show the

number of items in

specifi c categories.

Line graphs show

change over a period

of time.

B

513_531_C09_L3_895130.indd 518 1/11/10 9:40 AM