Interpreting results

Dual and compound bar charts

Name: ______________________________Date: ______________Score: ______ / 20

1.
A dual bar chart shows Amber with 10 CDs and 2 DVDs. How many more CDs than DVDs does she have?
more CDs
2.
Which chart STACKS two sets of data into one bar?
1. Aa compound bar chart
2. Ba dual bar chart
3. Ca line graph
3.
You want to see who has the most items ALTOGETHER. Which chart is better?
1. Aa compound bar chart
2. Ba dual bar chart
3. Ca tally chart
4.
What does a bar chart need so you know which colour is which?
1. Aa key
2. Ba title
3. Ca protractor
5.
On a DUAL bar chart, a student with 6 CDs and 2 DVDs has one bar reaching 8.
True False
6.
Sort each statement about these charts.
Write each item’s group (Dual bar chart / Compound bar chart):
- shows the bars side by side
- stacks the sets into one bar
- makes totals easy to read
- makes the parts easy to compare
7.
A compound bar chart stacks 5 CDs and 8 DVDs into one bar. How tall is the bar?
8.
On a DUAL bar chart, a student with 10 CDs and 3 DVDs has one bar reaching 13.
True False
9.
A compound bar chart stacks 9 CDs and 7 DVDs into one bar. How tall is the bar?
10.
A compound bar chart shows Amber (5 CDs, 8 DVDs) and Karl (2 CDs, 4 DVDs). Who has the taller bar?
1. AKarl
2. Bthey are the same
3. CAmber
11.
A compound bar reaches 19, and the lower section (CDs) is 3. How tall is the upper section (DVDs)?
12.
A dual bar chart shows DVDs: Amber 5, Wenkai 11, Karl 4. Who has the most DVDs?
1. AWenkai
2. BAmber
3. CKarl
13.
On a DUAL bar chart, a student with 3 CDs and 7 DVDs has one bar reaching 10.
True False
14.
A dual bar chart shows DVDs: Amber 9, Wenkai 11, Karl 3. Who has the most DVDs?
1. AAmber
2. BWenkai
3. CKarl
15.
On a DUAL bar chart, a student with 7 CDs and 8 DVDs has one bar reaching 15.
True False
16.
A compound bar chart stacks 10 CDs and 4 DVDs into one bar. How tall is the bar?
17.
A compound bar chart shows Amber (2 CDs, 5 DVDs) and Karl (7 CDs, 9 DVDs). Who has the taller bar?
1. AAmber
2. Bthey are the same
3. CKarl
18.
A compound bar reaches 13, and the lower section (CDs) is 7. How tall is the upper section (DVDs)?
19.
A dual bar chart shows DVDs: Amber 12, Wenkai 5, Karl 11. Who has the most DVDs?
1. AAmber
2. BWenkai
3. CKarl
20.
A compound bar reaches 12, and the lower section (CDs) is 4. How tall is the upper section (DVDs)?

Answer key

Interpreting results — Dual and compound bar charts

1.8 more CDs
2.A. a compound bar chart
3.A. a compound bar chart
4.A. a key
5.False
6.shows the bars side by side = Dual bar chart; stacks the sets into one bar = Compound bar chart; makes totals easy to read = Compound bar chart; makes the parts easy to compare = Dual bar chart
7.13
8.False
9.16
10.C. Amber
11.16
12.A. Wenkai
13.False
14.B. Wenkai
15.False
16.14
17.C. Karl
18.6
19.A. Amber
20.8