Statistics Quiz

What is the science of collecting, analyzing, and interpreting data?

• Chemistry

• Physics

• Statistics

• Biology

Which category of statistics focuses on organizing and summarizing data using numbers and graphs?

• Descriptive Statistics

• Inferential Statistics

• Prescriptive Statistics

• Predictive Statistics

What type of graph has bars that are attached to each other?

• Line Graph

• Pie Chart

• Histogram

• Bar Graph

Which measure of central tendency is the middle number of a data set?

• Median

• Range

• Mean

• Mode

What is the sum of your sample data divided by the number of data items in your sample?

• Mean

• Median

• Range

• Mode

In inferential statistics, what do we use to make an inference or draw a conclusion of the population?

• Central Tendency

• Probability

• Sample Data

• Descriptive Statistics

What is used to determine how confident we can be that the conclusions made are correct?

• Central Tendency

• Probability

• Sample Data

• Descriptive Statistics

What is the term for the percentage of individuals living in city xyz that prefer to drive blue cars within a two percent margin of error?

• Population Mean

• Sample Mean

• Inference

• Confidence Intervals

By increasing the sample size, what can we do to make a better prediction of the population?

• Ignore Probability

• Decrease Accuracy

• Increase Confidence

• Reduce Sample Data

What is the term for the number that occurs most frequently in a data set?

• Mean

• Mode

• Range

• Median