Page 172 - Math Smart - 7

Revision

o Meg wants to find out the type of music her classmates listen to most often. Design a data
collection sheet to help her find out.
e A company that makes and delivers ready-made food investigated the reasons for
deliveries that were not delivered on time. This data collection sheet was used to record
and organise the data.

Deliveries not on time
1 Delivery person: Sue Gin Weekending: 4/16

1 Dsy
Reason Total
Monday Tuesday Wednesday Thursday Friday
Delays in the
II 2
kitchen
Traffic 1 II 1 4
Car problems i 1 1 1 3
Delayed at
III II 5
previous delivery
Total 2 1 3 3 5 14

a) How many different reasons were there for late delivery?
b) How many times were deliveries late during the five days?
c) What was the most common cause for late delivery?
d) How many times was the delivery late due to car problems over the five days?
e) On how many days did car problems result in late delivery?

f) On which day did delays in the kitchen result in late delivery?
g) On Wednesday, how many late deliveries were caused by traffic?
© State whether each question is an example of an open-ended or a closed question.

a) How much did you spend on cellphone data this week? Answer:
b) Do you travel to school by bus? Yes No

O Write an improved question for each of the following questions.
a) Do you agree that it is better to have a four-door car, than a two-door car?
b) How often do you eat fish?
sometimes occasionally often

0 There is a lot of litter in the school playground. School management would like to find
out what can be done to reduce the litter problem. Propose one question that could be
used in a questionnaire to collect this information.

© Mike wants to find out what his classmates are planning to do once they leave school.
Design a questionnaire that Mike could use to find this information. The questionnaire
should have five questions.

168 UNIT 7