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What does probability really mean? According to the Webster's Dictionary it means: the chances of something happening, or the ratio of the number of times it could happen compared to the number of possible things that could happen.

# Mean, Median, Mode, and Range

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Basic Lesson
Introduces the terms mean, median, mode, and range. Provides a detailed example of the use of the terms within a data set.
Standard: MATH 4
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Intermediate Lesson
This lesson focuses on the use and application of medians within data sets.
Standard: MATH 4
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Independent Practice 1
Students practice determining the mean, median, mode, and range with 20 problems. The answers can be found below.
Standard: MATH 4
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Independent Practice 2
Another 20 mean, median, mode, and range problems. The answers can be found below.
Standard: MATH 4
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Homework Worksheet
Reviews all skills in the unit. A great take home sheet. Also provides a practice problem.
Standard: MATH 4
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Mean, Median, Mode, and Range Quiz
10 problems that test mean, median, mode, and range skills.
Standard: MATH 4
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Answers for the homework and quiz.
Answers for both lessons and both practice sheets.

What is Probability? How Does It Shape Our Lives?
Experts say that a person has the same chance of winning the lottery as the chance of being struck by lightening!
View Math Article
Why is calculating the probability of events important in life?
When you calculate the probability of an event you look at chances of getting what you want versus all the possible things that can happen.
View Math Article