Data

Line graphs & frequency

Name: ______________________________Date: ______________Score: ______ / 20

1.
What is a line graph best for showing?
1. Ahow something changes over time
2. Bthe proportions of a whole
3. Cwhich value is the mode
4. Da ratio
2.
In a frequency diagram (unlike a bar chart), the bars…
1. Ahave no gaps between them
2. Bare always red
3. Cshow slices
4. Dare circles
3.
A temperature line graph starts at 3°, rises to 5°, then falls to 2°. Overall, the line…
1. Agoes up then down
2. Bonly goes up
3. Cstays flat
4. Donly goes down
4.
A line graph shows temperatures: 9 a.m. 8°C, 11 a.m. 12°C, 1 p.m. 14°C, 3 p.m. 15°C, 5 p.m. 11°C. What was the temperature at 5 p.m.?
°C
5.
Using that graph, at what time was the temperature 8°C?
1. A9 a.m.
2. B1 p.m.
3. C5 p.m.
4. D11 a.m.
6.
A candle is 18 cm tall. After 1 hour it is 14 cm tall. How many centimetres burned in the first hour?
cm
7.
Frequency diagrams are used for data that is…
1. Ameasured (continuous), like heights
2. Bonly colours
3. Conly names
4. Donly yes/no answers
8.
A line graph is a good way to show how temperature changes during a day.
True False
9.
In a frequency diagram there are big gaps between the bars.
True False
10.
A candle is 6 cm tall. One hour later it is 5 cm. How many centimetres burned in that hour?
cm
11.
A candle is 19 cm tall. One hour later it is 17 cm. How many centimetres burned in that hour?
cm
12.
A candle is 18 cm tall. One hour later it is 17 cm. How many centimetres burned in that hour?
cm
13.
A candle is 10 cm tall. One hour later it is 8 cm. How many centimetres burned in that hour?
cm
14.
A candle is 19 cm tall. One hour later it is 14 cm. How many centimetres burned in that hour?
cm
15.
A candle is 21 cm tall. One hour later it is 20 cm. How many centimetres burned in that hour?
cm
16.
A candle is 22 cm tall. One hour later it is 16 cm. How many centimetres burned in that hour?
cm
17.
A candle is 18 cm tall. One hour later it is 13 cm. How many centimetres burned in that hour?
cm
18.
A candle is 9 cm tall. One hour later it is 8 cm. How many centimetres burned in that hour?
cm
19.
A candle is 13 cm tall. One hour later it is 10 cm. How many centimetres burned in that hour?
cm
20.
A candle is 21 cm tall. One hour later it is 17 cm. How many centimetres burned in that hour?
cm

Answer key

Data — Line graphs & frequency

1.A. how something changes over time
2.A. have no gaps between them
3.A. goes up then down
4.11 °C
5.A. 9 a.m.
6.4 cm
7.A. measured (continuous), like heights
8.True
9.False
10.1 cm
11.2 cm
12.1 cm
13.2 cm
14.5 cm
15.1 cm
16.6 cm
17.5 cm
18.1 cm
19.3 cm
20.4 cm