
Class quiz 18: Ch.12 Presentation of Data (I)
Quiz by Ms Choi
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The statistical diagram below shows the numbers of customers and the incomes of a boutique from Monday to Friday. On which day was the incomethe highest?

Which kind of data are the following?
I. The distance achieved byeach athlete in a long jump competition
II. The numbers of participantsin 10 long jump competitions
The broken line graph shows the profits ofa company in the past four quarters.
Find the total profit of the company in the four quarters.

Thefollowing stem-and-leaf diagram shows the weights of the parcels received by apost office yesterday. How many of the parcels weighed 1.8 kg orless?

The statistical diagram below shows the numbers of customers and theprofits of a shop from Monday to Friday in a week.
Which of the following is/aretrue?
I. When the number of customers decreased gradually, the profitdecreased gradually.
II. When the number of customers increased gradually, the profitincreased gradually.
