Introduction to Finding Averages and Basic Probabilities
One application of decimals that arises often is finding the average of a set of numbers. What do you think of when you hear the word average? Is it your grade point average, the average rent for an apartment in your city, the batting average of a player on your favorite baseball team? The average is a typical value in a set of numerical data. Calculating an average sometimes involves working with decimal numbers. In this section, we'll look at three different ways to calculate an average.Learning Outcomes
By the end of this section, you will be able to:- Calculate the mean of a set of numbers
- Find the median of a set of numbers
- Find the mode of a set of numbers
- Apply the basic definition of probability
readiness quiz
Before you get started, take this readiness quiz.- Simplify: [latex]\frac{4+9+2}{3}[/latex].If you missed this problem, review [link].
- Simplify: [latex]4\left(8\right)+6\left(3\right)[/latex].If you missed this problem, review [link].
- Convert [latex]\frac{5}{2}[/latex] to a decimal.If you missed this problem, review [link].
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- Prealgebra. Provided by: OpenStax License: CC BY: Attribution. License terms: Download for free at http://cnx.org/contents/[email protected].