Mathematics

DA1

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1. Every five years the Australian Bureau of Statistics conducts a census.

Which of the following is a reason a census is useful to government planning:

It collects information from every member of the community.
It employs a lot of people and reduces the unemployment rate in an election year.
It will find all of the people who are avoiding paying taxes.

 

2. When conducting a questionnaire for a statistical inquiry it is important to consider how the questions are asked because: (choose the MOST correct response)

A badly worded question will make people angry and this will affect how they answer.
The way the question is worded can influence how it is answered.
If the questionnaire is too long you wont get many people to respond.

 

3. Statistics are important to industry. One reason for this is:

By collecting and testing a sample of their product they can be sure of how many defective items were produced.
By collecting and testing a sample of their product they can determine which worker is not as productive as the others.
By collecting and testing a sample of their product they can get some indication if their standards are being maintained.

 

4. When collecting statistical data it is said you must consider issues of privacy and ethics.

This means you should:

Not allow anyone else to know the results of your survey.
Have your survey checked by the police before going ahead with it.
Be conscious of the sensitivities your questions may trigger.

 

5. The Australian Bureau of Statistics is:

Run by the government of the day
Independent of government influences.
A branch of the Australian Taxation Office.

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