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Goal(s): Observe how the probability of either of two independent events occurring is the sum of their individual probabilities minus the product of their probabilities. Over numerous trials, the observed relative frequency approaches the expected probability (Law of Large Numbers).
How: For two independent variables (college year and college major), pick their combined outcome. Then select the number of trials to observe (+1, +10, +100, and +1000). Finally, record the relative frequency with which either outcome (e.g., first-year student and business major) occurs.
Site: P2L.io
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Addition Theorem of Probability (for Independent Events)
Addition Theorem of Probability (for Independent Events)
p(A OR B) = p(A) + p(B) - p(A) x p(B)
Law of Large Numbers
Law of Large Numbers
As the number of trials increases, the outcome approaches the expected probability.
Demonstration
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