End of Term 2 Revision Units 6 and 16

• Mathematics
• Secondary Education
• Age 11,12

End of Term 2 Revision Units 6 and 16

Which of the following is NOT an example of discrete data?

1. Number of books on a shelf
2. Time in hours and minutes
3. Number of cars in a parking lot
4. Number of goals scored in a match

What type of data is counted in distinct and separate units?

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

Which of the following is an example of discrete data?

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

Which of the following is an example of continuous data?

1. Types of fruits in a basket
2. Number of cars in a parking lot
3. Number of students in a class
4. Weight of a person

In statistics, continuous data can take on any value within a given _____________.

1. Group
2. Range
3. Category
4. Cluster

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

1. Height of a building
2. Time taken to complete a race
3. Number of siblings
4. Temperature in degrees Celsius

What is categorical data?

1. Data that is not useful for analysis
2. Data that can be divided into categories
3. Data that is continuous and uncountable
4. Data that is only numerical

Which of the following is an example of categorical data?

1. Temperature in degrees
2. Height in centimeters
3. Annual income in dollars
4. Eye color

How is categorical data different from numerical data?

1. Numerical data is easier to analyze
2. Numerical data is more accurate
3. Categorical data cannot be graphed
4. Categorical data represents characteristics or qualities

What type of chart is commonly used to represent categorical data?

1. Bar chart
2. Line graph
3. Histogram
4. Scatter plot

What is random sampling?

1. A method where the researcher selects members based on their availability.
2. A method where each member of the population has an equal chance of being selected.
3. A method where the researcher selects the most convenient members of the population.
4. A method where the researcher selects members based on their characteristics.

What is a method of data collection that involves asking a series of questions to gather information?

1. Surveys
2. Questionnaires
3. Interviews
4. Experiments

Which method of data collection involves gathering information by observing subjects in a controlled environment?

1. Questionnaires
2. Experiments
3. Interviews
4. Surveys

What is a systematic way of gathering information from individuals by asking questions and recording their responses?

1. Questionnaires
2. Surveys
3. Experiments
4. Interviews

Which of the following is a structured set of questions designed to gather information from a sample of people?

1. Experiments
2. Interviews
3. Questionnaires
4. Survey

What is a research method used to investigate relationships between variables by manipulating one variable while controlling others?

1. Experiment
2. Interview
3. Questionnaire
4. Survey

Which of the following is a common method to record data?

1. Filling out forms
2. Sending emails
3. Using spreadsheets
4. Making phone calls

What is the purpose of recording data accurately?

1. Ensuring data integrity
2. Improving internet speed
3. Increasing storage capacity
4. Facilitating analysis

What type of chart is best for showing the change in temperature over a week?

1. Bar chart
2. Pie chart
3. Tally chart
4. Line graph

What is the best way to record the number of cars passing by every hour?

1. Histogram
2. Bar chart
3. Tally chart
4. Line graph

How would you represent the number of books read by each student in a class?

1. Line graph
2. Bar chart
3. Tally chart
4. Frequency polygon

What is an advantage of a large sample size?

1. Decreased diversity of data
2. Higher cost of data collection
3. Increased precision in estimating population parameters
4. Reduced statistical power

Which is a disadvantage of a small sample size?

1. Lower risk of sampling error
2. Greater variability in estimates of population parameters
3. Faster data analysis
4. Easier data management

What is a potential drawback of a large sample size?

1. Decreased precision
2. Higher cost and time for data collection
3. Lower confidence in results
4. Reduced data complexity

Why might a small sample size be advantageous?

1. Increased precision
2. Higher statistical power
3. Lower cost and time for data collection
4. Enhanced generalizability

What is a two-way table used for?

1. Creating line graphs
2. Organizing categorical data into rows and columns
3. Calculating mean and median
4. Plotting scatter plots

What kind of data is typically organized in a two-way table?

1. Categorical data
2. Textual data
3. Continuous data
4. Qualitative data

What is the middle value in a set of numbers?

1. Mode
2. Range
3. Mean
4. Median

Which measure of central tendency is affected by extreme values?

1. Mode
2. Range
3. Median
4. Mean

What is the most frequently occurring value in a set of numbers?

1. Mean
2. Median
3. Mode
4. Range

What measures the spread of a set of numbers?

1. Median
2. Mode
3. Range
4. Mean

If a set of numbers has two middle values, what should be calculated?

1. Mean
2. Range
3. Median
4. Mode

What is the value of the mean in the following data set: 5, 7, 9, 11, 13?

1. 9
2. 7
3. 13
4. 11

Determine the median of the data set: 4, 7, 9, 12, 15, 20, 25

1. 20
2. 15
3. 9
4. 12

What is the mode of the following data set: 3, 5, 5, 7, 8, 9?

1. 8
2. 7
3. 3
4. 5

Find the range of the data set: 10, 15, 20, 25, 30, 35, 40

1. 25
2. 15
3. 30
4. 20

Calculate the mean of the following data set: 2, 4, 6, 8, 10, 12

1. 7
2. 8
3. 10
4. 4