4-4 4-5 4-6 multiplication rule complement rule counting rule PDF

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ALL OF THESE ARE LECTURE NOTES, DATES ARE IN THE TITLE. I AM NOT INDIVIDUALLY FILLING OUT 100+ THINGS WITH THE SAME INFORMATION, DO IT YOURSELF!...

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STA2023 – 2/8/17 Section 4.5: Multiplication Rule, Complements and Conditional Probability Complements: “at least one” – means you have one or more What is the complement of “at least one”? The complement is none. P(at least one) = 1 – P(none) Example: Find the probability of a couple having at least one girl among three children. P(girl) = 0.5 P(not a girl) = 0.5 Find P(at least one girl) = 1 – [P(not a girl)] 3 = 1 – [0.5] 3 = 0.875 Example: Find the probability of a couple having at least one girl among six children P(at least one girl) = 1 – [.5]6 = 0.984...