A graph is a diagram that shows relationships among numbers.

A table is an organized chart or list of numbers.

Statistics is a name for organizing and interpreting data.

Probability is a number that expresses the likelihood that a specific event will happen.

Graphs and Tables

A circle graph represents one whole amount, such as 100%. Each pie-shaped piece of a circle graph represents a part of the whole.

A bar graph organizes information along a vertical axis that runs up and down one side and a horizontal axis that usually runs along the bottom.

A line graph, like a bar graph, has information on both a vertical axis and a horizontal axis. The changing data is shown on a continuous line rather than on a set of bars.

A table is a list of numbers displayed in columns and rows.

Probability is the chance of something happening:

The probability of an event is the ratio of the number of favorable outcomes to the total number of possible outcomes. (Favorable outcomes divided by total possible outcomes)

Probability can be dependent on an earlier situation.

Statistical Analysis

There are four ways to analyze a set of numbers:

The mean (or average)—a total divided by the number of items that make up that total.

The median—the middle value of an odd number of numbers and halfway between the two middle values of an even set of numbers

The mode—the most frequently occurring number in a set.

The range- the difference between the highest data value and the smallest data value. i.e. biggest number-smallest number

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