Data Analysis Vocab Quiz

What is the mean of a set of numbers?

• The average of a set of numbers, calculated by dividing the sum of the numbers by the total count.

• The middle number in a data set when the numbers are arranged in order.

• The value that appears most frequently in a data set.

Define median in a data set.

• The middle number in a data set when the numbers are arranged in order.

• The average of a set of numbers, calculated by dividing the sum of the numbers by the total count.

• The value that appears most frequently in a data set.

What is the mode in a data set?

• The value that appears most frequently in a data set.

• The middle number in a data set when the numbers are arranged in order.

• The average of a set of numbers, calculated by dividing the sum of the numbers by the total count.

How is the range of a data set calculated?

• The difference between the highest and lowest values in a data set.

• The middle number in a data set when the numbers are arranged in order.

• The value that appears most frequently in a data set.

What is an outlier in a data set?

• A data point that is significantly different from the other data points in a set.

• The middle number in a data set when the numbers are arranged in order.

• The value that appears most frequently in a data set.

Define quartile in a data set.

• One of the three values that divide a data set into four equal parts.

• The middle number in a data set when the numbers are arranged in order.

• The value that appears most frequently in a data set.

What is the interquartile range (IQR)?

• The difference between the third quartile (Q3) and the first quartile (Q1) in a data set.

• The middle number in a data set when the numbers are arranged in order.

• The value that appears most frequently in a data set.

Describe a box-and-whisker plot.

• A graphical representation of a data set that shows the median, quartiles, and range.

• A graph that shows the relationship between two variables by displaying data points on a coordinate plane.

• A bar graph that represents the frequency distribution of a data set.

What is a scatter plot used for?

• A graph that shows the relationship between two variables by displaying data points on a coordinate plane.

• A graphical representation of a data set that shows the median, quartiles, and range.

• A bar graph that represents the frequency distribution of a data set.

What is the line of best fit?

• A line that best represents the data on a scatter plot, used to predict values.

• A graphical representation of a data set that shows the median, quartiles, and range.

• A bar graph that represents the frequency distribution of a data set.