Year 12 Ch 1-4

What is data acquisition?

• When data meets existing rules

• When raw data is gathered

• When information is presented

• When data is manipulated

Secondary data can be considered to be better than primary data because it is often

• quicker to acquire.

• more reliable.

• very timely.

• reliable.

3 Efficient data collection may be

• accurate.

• reasonable.

• complete.

• cheaper.

Which of the following is not a suitable way to collect data for your upcoming SAT?

• Observation

• Sensors

• Telemarketing

• Survey

5 Properly citing references is important because:

• It gives credit to original authors

• It makes the text longer

• It confuses the reader

• It is not necessary

Which data type is best suited to storing the number of pets a family owns?

• Text

• Boolean

• String

• Integer

Select the appropriate data type to store an answer to the question ‘Is the person under the age of 16?’

• Text

• Boolean

• String

• Integer

When should number data types be used?

• When calculations are needed

• When there will be many records

• When the data contains numbers

• When sorting is required

Appropriate software tools for manipulating large amounts of data could be

• calculators and online editors.

• databases and online editors.

Which of the following is a factor that influences data integrity?

• User friendliness

• Timeliness

• Reliability

• Good design