Name:    Lesson 4: Interpreting Double-Bar Graphs

1.

Alex is comparing the number of births in the western provinces. He found the information in the two double-bar graphs shown below.Use these bar graphs to answer the following questions.

Which comparison do these graphs show?
 a. the comparison between the number of births in 2002 and the number of births in 2006 b. the comparison between the provinces c. the comparison between the first graph and the second graph d. the comparision between different sources

2.

The double-bar graphs above show the same data. Why do they look different?
 a. the colours in the legends are different b. the titles look different c. the scale for the number of births is different d. the second graph is narrower than the first graph

3.

Estimate the number of births in Manitoba (MB) in 2002.
 a. 15 000 b. 14 000 c. 20 000 d. 10 000

4.

Estimate the number of births in Saskatchewan in 2006.
 a. 12 000 b. 10 000 c. 15 000 d. 20 000

5.

Which province had the most births in 2002?
 a. Manitoba (MB) c. Alberta (AB) b. Saskatchewan (SK) d. British Columbia (BC)

6.

Which province had the most births in 2006?
 a. Manitoba (MB) c. Alberta (AB) b. Saskatchewan (SK) d. British Columbia (BC)

7.

Which province had the largest increase in the number of births between 2002 and 2006?
 a. Alberta (AB) c. Saskatchewan (SK) b. British Columbia (BC) d. Manitoba (MB)

8.

Sandra drew this double-bar graph to compare the average rainfall in two cities in British Columbia. Use this graph to answer the following questions.

Which two cities are being compared?
 a. Vancouver and Whistler c. Comox and Prince George b. Vancouver and Prince George d. Whistler and Comox

9.

Which city has the most yearly rainfall?
 a. Prince George c. Whistler b. Comox d. Vancouver

10.

Which city had the most rainfall in July?
 a. Vancouver c. Prince George b. Comox d. Whistler