Jarrod manages a muffin and scones shop. He surveyed locals on whether they preferred muffins or scones. The results are summarised in this table.

Which age group prefers scones to muffins?
People aged over 30
Jarrod manages a muffin and scones shop. He surveyed locals on whether they preferred muffins or scones. The results are summarised in this table.

Overall, which item do Jarrod's customers prefer?
Muffins
Jarrod manages a muffin and scones shop. He surveyed locals on whether they preferred muffins or scones. The results are summarised in this table.

How many of the people who prefer scones are over 30 years old?
36
This table shows the smoking habits of the adult population of Nelson Waters.
What value is missing from i?
5900
This table shows the smoking habits of the adult population of Nelson Waters.
What value is missing from ii?
16,100
Jarrod manages a muffin and scones shop. He surveyed locals on whether they preferred muffins or scones. The results are summarised in this table.

What percentage of people aged 30 or younger prefer muffins?
80%
This table shows the smoking habits of the adult population of Nelson Waters.
What value is missing from iii?
11,000
This table shows the smoking habits of the adult population of Nelson Waters.
What value is missing from iv?
11,000
This table shows the smoking habits of the adult population of Nelson Waters.
What value is missing from v?
22,000
This table shows the smoking habits of the adult population of Nelson Waters.

What fraction of the adults smoke? Simplify your fraction.
59/220
This table shows the smoking habits of the adult population of Nelson Waters.

What percentage of the adults are non-smokers? Round to 2 decimal places.
73.18%
Simone runs a cafe. He recorded data about who buys hamburgers and chicken wraps.

Calculate the missing totals.
i) 120
ii) 95
iii) 108
iv) 215
Simone runs a cafe. He recorded data about who buys hamburgers and chicken wraps.

How many females bought chicken wraps?
64
Simone runs a cafe. He recorded data about who buys hamburgers and chicken wraps.

What percentage of customers bought hamburgers? Answer to 2 decimal places.
50.23%
Simone runs a cafe. He recorded data about who buys hamburgers and chicken wraps.

What percentage of men bought chicken wraps? Answer to 1 decimal place.
35.8%
This table shows the smoking habits of the adult population of Nelson Waters.

What percentage of the adult women who live in Nelson Waters are smokers?
21.82%
Simone runs a cafe. He recorded data about who buys hamburgers and chicken wraps.

Simone is expecting a busload of men's football teams to visit the cafe. Should he prepare more hamburgers or chicken wraps?
Hamburgers.
Police are testing a new lie detector machine. The results are shown in this table.

What are the missing values in i to v?
i) 80
ii) 10
iii) 75
iv) 45
v) 120
Police are testing a new lie detector machine. The results are shown in this table.

For how many statements did the machine correctly determine whether the statement was true or false?
95
Police are testing a new lie detector machine. The results are shown in this table.

What percentage of true statements were incorrectly identified by the machine? Answer to 1 decimal place.
18.8%