Statistical Questions

What is an experimental research method?

• A method where researchers observe subjects without manipulation.

• A method where researchers manipulate one variable to determine its effect on another variable.

• A method that relies solely on theoretical models without practical application.

• A method that involves collecting data through surveys and questionnaires.

What is an observational study?

• A research method where the researcher manipulates variables to determine effects.

• A research method where the researcher observes and records behavior without manipulating any variables.

• A type of study that only involves surveys and questionnaires.

• A method that requires experimental conditions to be set up by the researcher.

What is a statistical question?

• A question that can be answered with a simple yes or no.

• A question that anticipates variability in the data and can be answered by collecting data that varies.

• A question that requires a definitive answer without any data.

• A question that is based on personal opinion rather than data.

What is the purpose of collecting a sample in statistics?

• To make inferences about a larger population when it is impractical to collect data from the entire population.

• To ensure that every individual in the population is surveyed.

• To eliminate the need for statistical analysis.

• To gather data that is only relevant to a small group.

What is a population in statistics?

• A population is the entire group of individuals or instances about whom we hope to learn.

• A population is a sample of individuals selected from a larger group.

• A population refers to the average of a set of data points.

• A population is the maximum value in a data set.

What does it mean if a question is not statistical?

• It means the question does not involve variability and can be answered with a single value.

• It means the question involves multiple variables and requires statistical analysis.

• It means the question can only be answered with a range of values.

• It means the question is based on subjective opinions rather than objective data.

Is 'How many students in your class ate breakfast this morning?' a statistical question?

• Yes, it is a statistical question because it involves data collection.

• No, it seeks a specific count from a single instance.

• Yes, it can be analyzed statistically over time.

• No, it does not require any data analysis.

What is a sample survey?

• A method of collecting data from the entire population.

• A technique used to gather opinions from a focus group.

• A method of collecting data from a subset of a population to make inferences about the whole.

• A process of analyzing historical data to predict future trends.

Is 'How many apps does each of your classmates have on their phones?' a statistical question?

• Yes, because it involves collecting data from multiple individuals.

• No, because it only pertains to one individual.

• Yes, but only if the data is collected anonymously.

• No, because it does not require any calculations.

Why is it important to understand variability in data?

• It helps in making accurate predictions and informed decisions based on data.

• It allows for the collection of more data points.

• It simplifies the data analysis process.

• It eliminates the need for statistical methods.