Statistical Investigation Process

The first step in the statistical investigation process is to identify a problem that could be answered with the use of data and to pose (or formulate) a ...

(a)  

Once a question has been posed, the next step in the statistical investigation process is to ...

• collect data

• organise and display data

• summarise and analyse data

• interpret and communicate results

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CCSS.HSS.IC.B.3

A (a)   is when data is collected from every member of the target population.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A (a)   is when data is collected from a subset of the target population.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

The most important consideration when selecting a sample from the population, is to ensure that the sample is ................... of the population

• representative

• all

• biased

• random

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

To ensure that a sample is representative of the population, a ................... sampling technique should be used to select the sample.

• representative

• coordinated

• biased

• random

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Which of the following is the best definition of a biased sample?

• A sample that accurately reflects the target population.

• A sample where the data collected will lean toward a certain result.

• A sample that is selected randomly from the target population.

• A sample where results are taken from each strata (or group) within the target population.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Data that has been collected by the person or group that will use the data is called (a)   data.

The biggest advantage of using a census is that ......

• The data must reflect the population because it includes all members.

• It is quicker to collect data using a census.

• It is easier to collect data using a census.

• It is cheaper to collect data using a census.

Which of the following is not an advantage of using a sample, rather than a census?

• The data must reflect the population because it includes all members.

• It is quicker to collect data using a census.

• It is easier to collect data using a census.

• It is cheaper to collect data using a census.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1