1. Data

Question 1

What is data used for?

Answer 1

To make a point or to inform decisions

Question 2

What are the main two types of data?

Answer 2

Qualitative (non-numerical)

Quantitative (numerical)

Question 3

Explain the two types of Quantitative (numerical) data, and give an example for each.

Answer 3

Discrete

• Whole numbers
• Can only take certain values in a range
  e. g. number of siblings

Continuous

• Mostly decimals
• Can take any value in a range
  e. g. weight

Question 4

Primary data is…

Answer 4

collected first hand for this particular investigation.

Question 5

Secondary data is…

Answer 5

collected by a different person for a different investigation, but is being used here.