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Glossary

Glossary:  Module 7

        All informal definitions are based on

my own experience and knowledge

Term: Mean

       Informal Definition:

The mean is the average of several numbers.

Formal Definition:

The mean is the average of the numbers: a calculated

“central” value of a set of numbers.

Definition from: mathisfun.com

Example of Mean:

Example from: quia.com

Term: Mode

         Informal Definition:

The mode is the number that occurs the most.

Formal Definition:

The mode is the number that is repeated more often than

any other.

Definition from: purplemath.com

Example of Mode:

 
Example from: room17math.wikispaces.com

Term: Median

         Informal Definition:

The median is the middle number in a set of numbers.

Formal Definition:

The median is the middle number (in a sorted list of numbers).

Half the numbers in the list are less, and half the numbers

are greater.

Definition from: mathisfun.com

Example of Median:

  
Example from: blogs.oregonstate.edu

Term: Range

         Informal Definition:

The range is the difference between the highest

score to the lowest score.

Formal Definition:

The range is the difference between the largest and 

smallest values.

Definition from: purplemath.com

Example of Range

 Example from: easycalculation.com

Term: Frequency Distribution

      Informal Definition

A frequency distribution is a way to organize

and display to identify relationships among

that data.

Formal Definition

A table that lists a set of scores and their frequency

(how many times each one occurs).

Definition frommathisfun.com

Example of Frequency Distribution:

 

 Example from: math.tutorvista.com

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One response to “Glossary

  1. pjhutton ⋅

    Jennifer,

    I love the mean teacher finding an average!! Kids would love your images and the clear definitions you have included.

    Great resource!!

    Pat

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