Page 184 - Mathematics Coursebook

19.1 Interpreting and drawing pictograms, bar charts, bar-line graphs and frequency diagrams

) Exercise 19.1

1 The pictogram shows the favourite lesson of the students Science
in class 7T.
Maths
a How many of the students said their favourite lesson
was science? Geography
b How many more students chose maths than chose art? History
c How many students are there in class 7T? Art
Key: represents 2 students

2 The table shows the number of letters Mr Khan received each day during one week.

Day of week Number of letters Monday
Monday 9 Tuesday
Tuesday 12 Wednesday
Wednesday 6 Thursday
Thursday 5 Friday
Friday 15 Key: represents 4 letters

a Copy and complete the pictogram to show the information. Use the key given.
b Copy and complete the bar chart below to show the information.

Number of letters Mr Khan received in one week

Number of letters 14 8
12
10

4 6
2
0 Monday Tuesday Wednesday Thursday Friday
Day of week

3 The bar-line graph shows the number of Drinks sold in a canteen
drinks sold in a canteen one lunchtime.
a How many apple juice drinks were sold?
b How many more teas than coffees 14
12
were sold? Number of sold 16
c How many drinks were sold altogether? 10 8
d What was the least popular drink? 6
4
2
0 Coffee Tea Apple juice Orange juice Water
Types of drink

19 Interpreting and discussing results 183