FPD3

What is a “sample” in statistics?

• A. The entire group of individuals in a study
  

• B. A summary measure from the population
  

• C. A subset of the population
  

• D. The process of analyzing data

What is the term for characteristics recorded from each individual?

• A. Parameters

• B. Cases

• C. Variables

• D. Statistics

What is “sampling variability”?

• A. The error due to inaccurate measuring instruments

• B. Variation among statistics from different samples

• C. Variability in population traits

• D. The number of individuals sampled

Which of the following is considered a primary data source?

• A. Published research article

• B. Online database

• C. Experiment

• D. Website report

What is the main goal of inference in statistics?

• A. To make conclusions about a population from a sample

• B. To summarize a population

• C. To collect all possible data

• D. To remove variability

In sampling design, which step involves identifying the entire group you want to study?

• A. Execute the sampling process

• B. Determine sample size

• C. Define the population

• D. Select sampling technique

Which sampling method ensures each unit has a known chance of being selected?

• 
  A. Probability sampling

• B. Convenience sampling

• C. Judgmental sampling

• D. Snowball sampling

What is one key question to ask about a sample?

• A. Is the sample costly?

• B. Is the sample representative?

• C. Is the sample very large?

• D. Is the sample digital?

What does the sampling process aim to achieve?

• A. Remove the need for inference

• B. Select the entire population

• C. Eliminate standard deviation

• D. Select a portion to represent the whole

What does natural variability among individuals refer to?

• A. Differences introduced by researchers

• B. Measurement bias

• C. Differences in samples over time

• D. Individuals not being all alike