Statistics Formulas
Find all the formulas you need to tackle any data set. Learn to calculate standard deviation, evaluate factorials, and make sense of statistical symbols.

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Challenging Counting Problems and Solutions

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Probability of the Union of Three or More Sets

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Margin of Error Formula for Population Mean

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Sum of Squares Formula Shortcut

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How to Calculate the Variance of a Poisson Distribution

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Standard Normal Distribution in Math Problems

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Exponential Distribution Medians

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How Many Elements Are in the Power Set?

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The Formula for Expected Value

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Examples of Uncountable Infinite Sets

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The Formula for ChiSquare Statistic

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ZScores Worksheet

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Using the Standard Normal Distribution Table

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Levels of Measurement Worksheet With Solutions

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How to Derive the Formula for Combinations

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Formula for the Normal Distribution or Bell Curve

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Student's t Distribution Formula

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Binomial Table for n= 10 and n=11

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What Courses Do You Need to Take for a Statistics Degree?

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Binomial Table for n=7, n=8 and n=9

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Binomial Table for n = 2, 3, 4, 5 and 6

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Addition Rules in Probability

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Calculations With the Gamma Function

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Worksheet on Combinations and Permutations

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ZScore Formula

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Student t Distribution Table