MATH 110 Sec 13.1 Intro to Probability Practice Exercises We are flipping 3 coins and the outcomes are represented by a string of H’s and T’s (HTH, etc.).

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Presentation transcript:

MATH 110 Sec 13.1 Intro to Probability Practice Exercises We are flipping 3 coins and the outcomes are represented by a string of H’s and T’s (HTH, etc.). How many elements are there in the sample space? Express the event “There are more heads than tails” as a set. What is the probability that there are more heads than tails?

MATH 110 Sec 13.1 Intro to Probability Practice Exercises Four cards are drawn from a well-shuffled 52-card deck. What is the probability of drawing a heart?

MATH 110 Sec 13.1 Intro to Probability Practice Exercises Four cards are drawn from a well-shuffled 52-card deck. What is the probability of drawing a heart? 13 CLUBS 4 suits (CLUBS, SPADES, HEARTS, DIAMONDS) 13 SPADES 13 HEARTS 13 DIAMONDS

What are the odds against drawing a heart? MATH 110 Sec 13.1 Intro to Probability Practice Exercises Four cards are drawn from a well-shuffled 52-card deck.

MATH 110 Sec 13.1 Intro to Probability Practice Exercises Four cards are drawn from a well-shuffled 52-card deck. What is the probability that all 4 are black?

MATH 110 Sec 13.1 Intro to Probability Practice Exercises Four cards are drawn from a well-shuffled 52-card deck. What is the probability that all 4 are black? 26 black cards 26 red cards

MATH 110 Sec 13.1 Intro to Probability Practice Exercises Opinions of residents in a town and surrounding area about a proposed racetrack is given here. SupportOppose Live in town Live in area surrounding A reporter randomly selects one of these 9081 people to interview. What is the probability that the person is for the track? What are the odds against the person supporting the track?

MATH 110 Sec 13.1 Intro to Probability Practice Exercises 8 in. 6 in. 4 in. 3 in. 2 in. 1 in. If a dart is thrown and hits somewhere in the diagram below, what is the probability that it hits the shaded area? (Write final answer as a decimal rounded to 4 decimal places.)

MATH 110 Sec 13.1 Intro to Probability Practice Exercises 21 in. 15 in. 9 in. 6 in. If a dart is thrown and hits somewhere in the figure below which is built from 4 different size squares (2 blue and 2 green), what is the probability that it hits the green area? (Write final answer as an integer or simplified fraction.)

MATH 110 Sec 13.1 Intro to Probability Practice Exercises Player 1 & Player 2 play a game using Spinner A and Spinner B as shown. Player 1 gets to choose one of the spinners, both players spin, and the one getting the larger number wins. Which spinner should Player 1 choose? Assuming that choice of spinner what is the probability that Player 1 wins?