2. Frequency distributions

Question 1

What are the three stages of scientific investigation? (Methods1 frequency distribution)

Answer 1

1) Obtaining data
2) Descriptive statistics
3) Inferential statistics

Question 2

What are the three levels of measurement? (Methods1 frequency distribution)

Answer 2

• Nominal
• Ordinal
• Interval

Question 3

What is nominal data? (Methods1 frequency distribution)

Answer 3

Numbers being used e.g house numbers

Question 4

What is ordinal data? (Methods1 frequency distribution)

Answer 4

Values that are ranked e.g maths scores

Question 5

What is interval data? (Methods1 frequency distribution)

Answer 5

Values that are on a fixed scale e.g time

Question 6

What type of data is gathered from a likert scale? (Methods1 frequency distribution)

Answer 6

Ordinal data, but it is treated as interval data

Question 7

What do frequency distributions represent? (Methods1 frequency distribution)

Answer 7

How often things occur in a specific data set e.g how many times people fall into one category

Question 8

What is the cumulative frequency? (Methods1 frequency distribution)

Answer 8

Adding the running total to the next category, so the final category will add to the full sample size

Question 9

What is the equation for relative frequency distributions? (Methods1 frequency distribution)

Answer 9

Relative frequency = raw frequency / total frequency