Stats Reasoning. Surveys and Questioning Techniques

Which of the following is a statistical question?

• What is your favorite color?

• How many students in your class scored above 80% in the last exam?

• What is the capital of France?

• What time is it now?

Which sampling method involves dividing the population into subgroups and then taking a sample from each subgroup?

• Simple random sampling

• Stratified sampling

• Systematic sampling

• Cluster sampling

In a simple random sample, each member of the population:

• Has an equal chance of being selected

• Is selected based on specific characteristics

• Is selected in a systematic order

• Is selected from a specific subgroup

What does a scatter plot show?

• The relationship between two variables

• The frequency of a single variable

• The distribution of a single variable

• The mean of a dataset

Which of the following is an example of a two-way table?

• A table showing the frequency of different colors of cars

• A table showing the number of students who prefer different subjects, broken down by gender

• A table showing the average test scores of students

• A table showing the population of different countries

In a scatter plot, what does a positive correlation indicate?

• As one variable increases, the other variable decreases

• As one variable increases, the other variable also increases

• There is no relationship between the variables

• The variables are inversely related

What is the purpose of a two-way table?

• To display the relationship between two categorical variables

• To show the distribution of a single variable

• To calculate the mean and median

• To display the frequency of a single variable

Which of the following is an example of a simple random sample?

• Selecting every 10th student from a list

• Drawing names from a hat

• Dividing students by grade and then sampling

• Using a Random Number Generator

What type of data is best displayed using a two-way table?

• Quantitative data

• Categorical data

• Continuous data

• Interval data

In a scatter plot, what does a negative correlation indicate?

• As one variable increases, the other variable also increases

• As one variable increases, the other variable decreases

• There is no relationship between the variables

• The variables are directly related