A statistical question has more than one possible answer. (What is the shoe size of each student in our class?)

A non-statistical question has only one answer. (How many days are in a week?)

Data can be represented in a dot plot (also called a line plot), where each dot represents a data point.

A histogram is the graphical representation of data where data is grouped into continuous number ranges and each range corresponds to a vertical bar.

• The range represents an interval of numbers

  1. 1. • EX: 0-5, 6-11, 12-17, 18-23, ...

• The horizontal axis displays the number range.

• The vertical axis (frequency) represents the amount of data that is present in each range.

• There can be NO SPACES between bars.

The number of ranges depends upon the data that is being used.