# Australian Bureau of Statistics

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 Understanding statistics

Data awareness

Q1. Which of the following is the correct logical order for these terms?
1. Knowledge - Data - Information
2. Data - Information - Knowledge
3. Knowledge - Information - Data
4. Information - Data - Knowledge

Q2. What is Australia's official population count?
1. Census
2. Estimated Resident Population
3. Labour Force Survey
4. Population 101

Understand statistical concepts

Q3. Which of the following is not a measure of central location?
1. mean
2. range
3. median
4. quartiles

Q4. A local milk-bar owner records how many customers enter the store over a 5 day period. The number of customers is as follows: 20, 21, 23, 21, 26. What is the mode of this survey?
1. 20
2. 21
3. 23
4. 26

Q5. Complete the following. ___________ is the process of estimating and then removing from a time series influences that are systematic and calendar related.
1. Trend
2. Stock series
4. Flow series

Analyse, interpret and evaluate statistical information

Q6. If a company has a workforce of 2,700 people, and a sample of 300 people were to be systematically surveyed, what would the sampling interval be?
1. 300
2. 90
3. 30
4. 9
Q7. Assume that the population of a school is 2,000. A survey found that only 30% of students in the school exercised on a regular basis. How many students exercise regularly?
1. 2,600 people
2. 1,400 people
3. 6 people
4. 600 people

Q8. Based on the table of figures below, what is the total unemployment percentage for March, rounded to a whole number?

 Labour Force Population Unemployment rate Male 53,000 6% Female 58,000 8% Total 111,000 ?
1. 14%
2. 7%
3. 67%
4. 5.5%

Communicate statistical information and understandings

Q9. When communicating statistical information regarding house prices, what would be the most accurate way to represent these?
1. Median
2. Mean
3. Mode
4. Average