year 8 maths

554 Chapter 9 Data collection, representation and analysis
PROBLEM-SOLVING AND REASONING
7, 8, 10 7, 8, 10, 11
8, 9, 11, 12
7 A tennis player records the number of double faults they serve per match during one month.
Double faults 0 1 2 3 4 5
Frequency 4 2 1 0 2 1
a How many matches did they play in total during the month?
b How many times did they serve exactly one double fault?
c In how many matches did they serve no double faults?
d How many double faults did they serve in total during the month?
8 Match each of these datasets with the correct column ( A , B , C or D ) in the frequency distribution
table shown below.
a 1, 1, 2, 3, 3 b 1, 2, 2, 2, 3
c 1, 1, 1, 2, 3 d 1, 2, 3, 3, 3
Number A B C D
1 3 2 1 1
2 1 1 1 3
3 1 2 3 1
9 Five different classes are in the same building in different rooms. The ages of students in each
room are recorded in the frequency distribution table below.
Age Room A Room B Room C Room D Room E
12 3 2 0 0 0
13 20 18 1 0 0
14 2 4 3 0 10
15 0 0 12 10 11
16 0 0 12 10 11
17 0 0 0 1 0
a How many students are in the building?
b How many 14 -year-olds are in the building?
c How many students are in room B ?
d What is the total age of all the people in room B ?
Cambridge Maths NSW
Stage 4 Year 8 Second edition
ISBN 978-1-108-46627-1 © Palmer et al. 2018
Cambridge University Press
Photocopying is restricted under law and this material must not be transferred to another party.