24.2 Tables, bar charts, pie charts and pictograms — Practise with help
Warm-up: remember
Closed book: Find in its simplest form, then work out of .
Check your answers
, and of is . If either answer differs, revisit equivalent fractions and fractions of amounts before continuing.
Question 1
A class records 8 apples, 5 bananas and 7 pears. Which chart compares the counts of separate categories?
Hint
The categories are separate, so you need a chart with one bar for each fruit.
Next step
Name the chart that uses separate bars with gaps between them.
Full working
A bar chart. Each fruit gets its own bar, and the gaps show the categories are separate.
Question 2
Find the pie-chart angle for 12 out of 48 responses.
Hint
A full pie chart is , so find the fraction of the whole first.
Next step
, so find .
Full working
.
Question 3
A pictogram symbol represents 4 votes. How many votes do 3 symbols show?
Hint
Each whole symbol stands for the same number of votes.
Next step
Multiply the number of symbols by the value of one symbol: .
Full working
votes.