Handling Data

1. In one year, 300 Tourer bikes were sold. On a pictogram where 1 wheel represents 50 bikes, how many wheels would you put on the Tourer line?

1

6

300

6 wheels would represent 6 x 50 = 300 bikes.

Explanation

6 wheels would represent 6 x 50 = 300 bikes.

2. Tally marks are usually drawn in groups of

1

3

5

Tally marks are usually drawn in groups of 5 to make them easier to count.

Explanation

Tally marks are usually drawn in groups of 5 to make them easier to count.

3. 22 children were asked whether they walked to school. 11 children said yes. What fraction of a pie chart would be taken up by the Yes segment?

One quarter

One third

One half

11 out of 22 is one half. As one half of the children said yes, one half of a pie chart would be taken up by the Yes segment.

Explanation

11 out of 22 is one half. As one half of the children said yes, one half of a pie chart would be taken up by the Yes segment.

4. 240 people were asked what they'd had for breakfast. A pie chart was drawn of the results. Toast took up one quarter of the chart. This shows

60 people had toast for breakfast

90 people had toast for breakfast

Most people like toast for breakfast

One quarter of 240 is 60. So 60 people had toast for breakfast.

Explanation

One quarter of 240 is 60. So 60 people had toast for breakfast.

5. Emily drew a bar chart to show the number of different birds she saw on holiday. There was no bar above the label Puffin. What does this mean?

She didn't see any puffins on holiday

No puffins exist in this country

She had made a mistake

If a label has no bar on a bar chart, you read the height as 0. So Emily saw 0 puffins on holiday.

Explanation

If a label has no bar on a bar chart, you read the height as 0. So Emily saw 0 puffins on holiday.

6. In a survey of 18 children, 12 had brown eyes and 6 had blue eyes. What fraction of a pie chart would be taken up by the segment for blue eyes?

One quarter

One third

One half

6 out of 18 is one third. As one third of the children had blue eyes, one third of a pie chart would be taken up by the blue eyes segment.

Explanation

6 out of 18 is one third. As one third of the children had blue eyes, one third of a pie chart would be taken up by the blue eyes segment.

7. What is it NOT important to do when looking at information in a bar chart.

Read the title and words on the chart to find out what it's telling you

Measure the width of each of the bars

Look carefully at the scale of the bar chart and read the height of each bar on the scale

The width of all the bars on a bar chart is the same and is not important.

Explanation

The width of all the bars on a bar chart is the same and is not important.

8. Lee made a bar chart to show how many bikes he sold each day. Each day had its own bar. We could find out the total number of bikes Lee sold by

Counting the number of bars

Finding the height of the tallest bar

Adding together the heights of all the bars in the chart

Adding together the heights of the bars would tell us the total number of bikes sold.

Explanation

Adding together the heights of the bars would tell us the total number of bikes sold.

9. In a pictogram of favourite sandwich fillings, a face represents 4 children. The line for Tuna shows 7.5 faces. How many children prefer Tuna fillings?

30

28

7.5

If 1 face represents 4 children, then 7.5 faces represent 7.5 x 4 = 30 children.

Explanation

If 1 face represents 4 children, then 7.5 faces represent 7.5 x 4 = 30 children.

10. Which of these would be best at showing how the temperature of a pie changes over time when it is put in the oven?

Pie chart

Line graph

Bar chart

A line graph would be best for showing how the temperature of the pie changes over time.

Explanation

A line graph would be best for showing how the temperature of the pie changes over time.