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Understanding Probability and Odds: Formula Review with Permutations and Combinations

This chapter focuses on key concepts in probability and odds, emphasizing the significance of order in permutations versus combinations. It discusses how to calculate probabilities involving various scenarios, such as spinning a spinner or rolling dice, and highlights the differences between comparing occurrences and non-occurrences. Furthermore, it explores practical examples like calculating the odds of selecting donuts and beverages from a group, giving clear methods to solve probability problems through multiplication of combined probabilities.

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Understanding Probability and Odds: Formula Review with Permutations and Combinations

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  1. Math 1332 Chapter 11.7 Still More Probability and Odds

  2. Formula Review With a Permutation Order is important With a Combination Order is not important Probability compares will happen to total outcomes Odds compare will happen to will not happen

  3. If you spin the spinner twice, what is the probability you will hit not read each time. Red Blue Blue Green Green Blue

  4. If you roll a die twice, what is the probability that you get an odd and then something greater than 4?

  5. When two probabilities are combined with and multiply the probabilities. I have 10 chocolate donuts, 8 lemon donuts and 6 plain donuts. If I select one, eat it, and select another, what is the probability of selecting two chocolate donuts.

  6. I have the following in a cooler: 6 Cokes, 8 Sprite, 4 Water Find the probability of selecting a Coke, then a Sprite, and then a Water. Find the probability of Coke, Coke, Sprite

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