Unit 6 Revision G7

• Mathematics
• Secondary Education
• Age 12,13

Unit 6 Revision G7

Which type of data can take on any value within a given range?

1. Nominal
2. Discrete
3. Continuous
4. Categorical

What type of data can only take on specific, distinct values?

1. Ordinal
2. Categorical
3. Discrete
4. Continuous

Which type of data is used to label variables that do not have a quantitative value?

1. Interval
2. Discrete
3. Categorical
4. Continuous

What type of data can be counted and expressed in whole numbers?

1. Continuous
2. Categorical
3. Discrete
4. Ordinal

Which of the following is an example of categorical data?

1. Age
2. Height
3. Temperature
4. Eye color

What type of data is gender?

1. Numerical
2. Categorical
3. Interval
4. Ordinal

Which of the following is not an example of categorical data?

1. Blood pressure
2. Hair color
3. Vehicle type
4. Marital status

Which of the following is an example of discrete data?

1. Weight of a person in kilograms
2. Number of students in a class
3. Height of a tree in meters
4. Temperature in degrees Celsius

What represents a discrete data set?

1. Average temperature over a week
2. Length of a river in kilometers
3. Time taken to complete a marathon
4. Number of goals scored in a football match

Which of the following is a discrete variable?

1. Number of cars in a parking lot
2. Speed of a car in miles per hour
3. Volume of water in a lake
4. Age of people in a city

What is an example of continuous data?

1. Gender of a person
2. Number of children in a family
3. Temperature in degrees Celsius
4. Types of fruit in a basket

Which of the following is an example of continuous data?

1. Time taken to complete a race
2. Number of pages in a book
3. Colors of the rainbow
4. Types of cars in a parking lot

Can you provide an example of continuous data?

1. Names of countries in a continent
2. Marital status of people
3. Number of pets in a household
4. Height of individuals in centimeters

What is a simple random sampling method?

1. Selecting individuals based on availability
2. Choosing individuals based on personal preference
3. Picking individuals from a specific group
4. Selecting individuals purely by chance

What is systematic sampling?

1. Selecting individuals based on convenience
2. Selecting every nth individual from a list
3. Choosing individuals randomly
4. Picking individuals from the beginning of the list

What is stratified sampling?

1. Choosing individuals based on alphabetical order
2. Picking individuals from the most populated subgroup
3. Selecting individuals randomly
4. Dividing the population into subgroups and selecting from each

What is an advantage of random sampling?

1. It provides a representative sample of the population.
2. It requires a list of the entire population.
3. It can be time-consuming and expensive.
4. It may lead to a biased sample.

What is a potential advantage of choosing a sample?

1. It can be more cost-effective and less time-consuming.
2. It ensures 100% accuracy in the data.

What is a potential disadvantage of choosing a sample?

1. It guarantees comprehensive and accurate results.
2. It may not fully represent the entire population.

Why may researchers choose to use a sample instead of the entire population?

1. It is often impractical or impossible to study the entire population.
2. It provides a guarantee of accurate and absolute results.

Which method is commonly used to collect quantitative data?

1. Literature review and content analysis
2. Surveys and experiments
3. Interviews and focus groups
4. Observation and case studies

Why is data validation important in the collection process?

1. To ensure accuracy and reliability
2. To identify outliers
3. To increase data volume
4. To speed up the analysis process

What should be done after data collection is complete?

1. Share the raw data with everyone
2. Delete the data to save storage space
3. Immediately start analysis
4. Organize and clean the collected data

What is a common method to record data collected?

1. Telepathically transmitting the data
2. Sending a carrier pigeon
3. Creating a sand sculpture
4. Using a spreadsheet software

What is a tally chart used for?

1. Recording data in a quick and simple way
2. Performing complex calculations
3. Drawing detailed graphs
4. Storing large amounts of information

How is data represented in a tally chart?

1. By making marks or strokes
2. By writing lengthy paragraphs
3. By creating pie charts
4. By using numbers only

What is the purpose of a key in a tally chart?

1. To change the color of the chart
2. To lock the data securely
3. To show what each tally represents
4. To add more tally marks

How is the data counted in a tally chart?

1. By arranging them randomly
2. By grouping the tally marks in fives
3. By estimating visually
4. By using a calculator

What type of information is often recorded using tally charts?

1. Geographical coordinates
2. Historical timelines
3. Frequencies or counts of specific events
4. Musical notations

What is a method of choosing a sample by randomly selecting individuals?

1. Dice
2. Spinner
3. Random selector
4. Hat

Which method involves choosing a sample by drawing names from a container?

1. Dice
2. Hat
3. Random selector
4. Spinner

What is a tool used for choosing a sample by generating a number between 1 and 6?

1. Hat
2. Random selector
3. Dice
4. Spinner

Which method of choosing a sample involves using a circular object that indicates a selection?

1. Dice
2. Hat
3. Spinner
4. Random selector

What is a method of choosing a sample by using a tool with different segments, each representing a choice?

1. Random selector
2. Dice
3. Hat
4. Spinner