Quiz on Knowledge and Skills

What is the first step in the statistical process?

• Analyze the data

• Display the data

• Formulate a statistical question

• Calculate the mean

Which of the following best describes a histogram?

• A graph that uses bars to display the frequency of data within equal intervals

• A graph that shows individual data points connected by lines

• A graph that displays the relationship between two variables using dots

• A graph that uses slices of a circle to show parts of a whole

What are the five numbers that make up the five-number summary?

• Mean, median, mode, range, and outlier

• Minimum, first quartile, median, third quartile, and maximum

• Mean, minimum, maximum, range, and mode

• First quartile, second quartile, third quartile, mean, and range

Which measure of center is calculated by adding all values in a data set and dividing by the number of values?

• Median

• Mode

• Mean

• Range

• Mode, because it appears most frequently

• Mean, because the data is evenly distributed with no outliers

• Median, because the data has extreme outliers

• Range, because it shows the spread of the data

• Median

• Mode

• Mean

• Minimum