Page 185 - MAT KS3 Y8 Cambridge CheckPoint

18.2 Interpreting and drawing pie charts

✦ Exercise 18.2

1 The table shows the favourite flavours of ice cream of the 30 students in class 8A.
Favourite flavour Vanilla Strawberry Raspberry Chocolate Caramel

Number of students 6 9 5 8 2
a Draw a pie chart to represent the data. Make of cars sold in June
b What percentage of the students chose vanilla as their favourite flavour?

2 The pie chart shows the four makes of car sold by a garage in June. Toyota
Ford
Altogether they sold 180 cars in June.
60°
a Which make of car was the most popular?
b What fraction of the cars sold were Toyota? 94° 126°
c What percentage of the cars sold were Vauxhall? Nissan Vauxhall
d How many of the cars sold were Ford?

3 The pie charts show the results of a survey about the type
of chocolate preferred by men and by women. Men’s favourite chocolate Women’s favourite chocolate
480 men took part in the survey.
600 women took part in the survey.
Caramel Plain Caramel Plain
a How many men chose plain chocolate?
b How many women chose plain chocolate? 60° 84° 81°
c Hassan thinks that more men than women White 135° White 120°
like milk chocolate. Is Hassan correct? Milk Milk
Show how you worked out your answer.
d The ‘Caramel’ sector for men and women is the same size.
Without doing any calculations, explain how you know that more women than men chose ‘Caramel’.
For questions 4 and 5 work in a group of three or four.
Favourite subjects
i On your own, answer each part of the question. Show all
your working.
ii Compare your answers and workings with those of the
Maths
other members of your group. Discuss the different
Languages
methods that you each used to answer the questions and 120 °
38 ° Science
decide which one is best.
90 ° 42 ° Art
4 The pie chart shows the results of a survey on
Other
students’ favourite subjects.
a What fraction of the students chose Science?
b 60 students chose Maths.
i How many students chose Languages?
Pembroke School Milford School
ii How many students chose Other?
iii How many students took part in the survey? 2% 14%
18%
25%
5 The pie charts show the favourite sports of the 12% 38%
students in two schools.
13%
There are 1600 students in Pembroke School. 7%
There are 1100 students in Milford School. 10% 32% 14%
Which school had the larger number of students 15%
choosing tennis as their favourite sport? Rugby Football Tennis
Show your working. Cricket Other Hockey

18 Interpreting and discussing results 183