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Statistics, NAP-K3-CA06

Clive and Alvin asked their friends how many books they had read in the past month.

Clive draws a picture graph to show the results for his friends.

Alvin draws a column graph to show the results for his friends.
 

 
How many more of Clive's friends read 3-4 books in the last month than Alvin's friends?

`0` `4` `6` `8`
 
 
 
 
Show Answers Only

`6`

Show Worked Solution

`text(Number of Clive’s friends)`

`= 4 xx 2`

`= 8`

`text(Number of Alvin’s friends = 2)`

 
`:. 6\ text(more of Clive’s friends.)`

Filed Under: Data and Interpretation, Data and Statistics (7) Tagged With: Band 6, smc-3166-11-Picture graphs, smc-3166-12-Bar charts, smc-674-11-Picture graphs, smc-674-12-Bar charts

Statistics, NAP-B3-CA11

During picking season, four groups of people were hired to pick apples.

A group will receive a bonus if they pick more than 24 apples per person in a 10-minute period.

The table below shows the total amount of apples picked by each group in the first 10 minutes.
 

 
Which group would have received a bonus in the first 10-minute period?

`text(A)`   `text(B)`  `text(C)`  `text(D)`
 
 
 
 
Show Answers Only

`text(Group C)`

Show Worked Solution

`text{Calculate apples picked per person (in 10 mins) for each group:}`

`text(A) = 68 ÷ 3 = 22.67…`

`text(B) = 95 ÷ 4 = 23.75`

`text(C) = 122 ÷ 5 = 24.4`

`text(D) = 143 ÷ 6 = 23.83…`
 

`:.\ text(Group C would have received a bonus.)`

Filed Under: Data and Interpretation, Data and Statistics (7) Tagged With: Band 7, smc-3166-11-Picture graphs, smc-674-11-Picture graphs

Statistics, NAP-E3-CA07

Chris did a survey of the number of female toilets in four shopping centres.

The results were recorded in the table below but the key has been left off the graph?

The total number of female toilets was 44.

How many toilets does represent in the graph?
`1`   `2`  `4`  `5`
 
 
 
 
Show Answers Only

`2`

Show Worked Solution

`text(Total number of female symbols)`

`= 5 + 4.5 + 5.5 + 7`

`= 22`
 

`:.\ text(The number of toilets one symbol represents)`

`=44/22`

`= 2`

Filed Under: Data and Interpretation, Data and Statistics (7) Tagged With: Band 5, smc-3166-11-Picture graphs, smc-674-11-Picture graphs

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