Discovering Math: Intermediate: Statistics and Data Analysis

Summarizes data using a single number.  The single number is found by finding the sum of the data divided by the number of pieces of data.

• Median 

• Range

• Mean

• Mode

A measure of variation in a set of numerical data, it is the distance between the first and third quartiles of the data set.

• Interquartile Range

• Outliers

• First Quartile

• Third Quartile

The number(s) or items(s) that appear most often in a set of data.

• Median 

• Range

• Mean

• Mode

The value appearing at the center of a sorted version of a list, or the mean of the two central values.

• Median 

• Range

• Mean

• Mode

Calculate the median of the following set of numbers: 3, 7, 9, 12, 14.

• 7

• 9

• 12

• 14

Calculate the mean of the following set of numbers: 3, 7, 7, 10, 12.

• 7

• 7.8

• 8

• 9

What is the mean of these numbers: 4, 8, 12, 16, 20?

What is the median of these numbers: 3, 7, 9, 13, 21?

A type of bar graph used to display numerical data that has been organized into equal intervals.

• Line Plot

• Interval

• Frequency Table

• Histogram

The distance between the greatest number and the least number in a set of data.

• Mean 

• Median

• Range

• Mode