STATISTICS • PICTOGRAMS 283How many people aged 11 to
18 visited? There are four full
symbols plus one half symbol. So
the calculation is: (4 × 2) + 1 = 9To find the number of visitors in a
particular age group, count the full
symbols in that row, multiply by two,
and add one if there’s a half symbol.Using large numbers
When a pictogram needs to show large numbers, each
picture or symbol can represent more than one. In this
pictogram, each symbol stands for two people who
visited a library. Half a symbol represents one person.Over 60 years19–60 years11–18 years5–10 yearsUnder 5 years16 people over
60 visited
the libraryA half symbol
represents
one personMake a pictogram
Use this frequency chart
to make a pictogram
showing how much time
Leroy spends playing
video games during
the school week.Design a symbol or draw
a picture to use on your
pictogram. It must be suitable
and easy to understand.How many minutes will
your symbol represent?
Will you use half symbols as
well as full ones?Will you arrange your
symbols in vertical
columns or horizontal rows?TRY IT OUTNumber of peopleLeroy’s gamingGaming time
MondayTuesdayWednesdayThursdayFriday30 minutes60 minutes15 minutes45 minutes75 minutesAgeVisitors to Maths Town Library2 peopleKEYDay282_283_Pictograms.indd 283 29/02/2016 18:06