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Vocabulary: Remember . . .

NAME:. DATE: ______/_______/_______. Math-8 NOTES. What: probability of compound, dependent events Why : To calculate the probability of compound, dependent events. Vocabulary: Remember . . .

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Vocabulary: Remember . . .

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  1. NAME: DATE: ______/_______/_______ Math-8 NOTES What: probability of compound, dependent events Why: Tocalculate the probability of compound, dependent events. Vocabulary: Remember . . . Independent Events– when one event does ____________________ affect the outcome of another event. For example, when two coins are tossed, the result of the 2nd coin does NOT depend on what the first coin lands on. Both coins have a 50% chance of landing on heads (or tails) no matter what. Dependent Events– when the outcome of one event _________________________________ on the outcome of the other event. For example, picking two Aces in a row from a standard deck of cards WITHOUT replacing the first card. Let’s work this out . . .

  2. PROBABILITY TRIALS • (compound, dependent events) • Trial One: Tootsie Pop Pick (2 Picks) • Out of 20 Trials (2 picks each), how many times will a grape get picked twice – P(grape and grape)? The pops will NOT be replaced after each pick. • -Probability : • -What is our percentage chance? • - Results of experiment: • - Did the results match what should have happened? • 2) Trial Two: Picking a Heart and a Black Card • After 20 trials, how many times will a heart AND a black card be chosen (first • card will NOT be replaced) -- P(heart and black card)? • -Probability : • -What is our percentage chance? • - Results of experiment: • - Did the results match what should have happened? • 3) Trial Three: Picking an Ace and a King • After 20 trials, how many times will an Ace and a King be picked (first card will • NOT be replaced) – P (Ace and a King)? • -Probability : • -What is our percentage chance? • - Results of experiment: • - Did the results match what should have happened?

  3. Sample compound, dependent event problems . . .

  4. NAME:_____________________________________________________________________________NAME:_____________________________________________________________________________ DATE: ______/_______/_______ Math-8 practice “independent and dependent probability”

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