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Answers to supplementary objective test questions
CHAPTER 8 – SUMMARISING AND ANALYSING DATA
8.1 D
8.2 D
A simple bar chart and a simple pie chart could not hold this amount of
information. So D – (ii) and (iv).
8.3 B
8.4 A
As the numbers show cumulative frequencies, a total of 26 people were paid
$20,000 or less, but of those 26, 9 were paid $10,000 or less so only 17 were
paid more than $10,000 up to $20,000.
8.5 D
As the data points are very close to the line of best fit but not on it, there is
strong correlation. As the line slopes downwards from left to right it is negative
rather than positive correlation.
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