In a school elecɵon four students are running for

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13.In a school elecƟon four students are running for president, and five students are running for vicepresident. Two of the presidenƟal candidates are female, and three of the vice presidenƟal candidatesare female. What is the probability that the elected president and vice president will both be male? A. 0.2B. 0.3C. 0.44D. 0.9 14.A game of chance at a carnival involves a game spinner divided into 20 sections. The sections are colored red, blue,yellow, and green with an equal number of sections for each color. To play the game, a person pays $3 and spins thespinner twice. If it stops on the same color both times, the person wins a large stuffed animal. What is the size ofthe sample space for spinning the spinner twice? 15.Which of these statements is true?
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16.The table below relates the number of points scored by different basketball players in atournament with the number of hours they spent practicing during the week before thetournament. If 50% of the basketball players scored fewer than 8 points in the tournament, what isthe approximate probability that a basketball player who practiced for more than 3 hoursscored fewer than 8 points? 17.Marco is calculating the conditional probability of events A and B. If he determines thatwhich statement describes events A and B? A. Aand Bare disjoint events.B. Aand Bare dependent events.C. Aand Bare independent events.D. Aand Bare complementary events.
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18.The table below shows how many seniors are currently taking physics and calculus. Which expression represents the probability that a student chosen at random who is inphysics will also be in calculus? 19.The students in a second grade classroom were surveyed to see if they have any pets.Of the students surveyed, 68% of them said they have a dog and 17% said they have adog and a cat. What is the probability that a student has a cat given that the studentalready has a dog? 20.Amanda spins a spinner numbered 1 to 10. What is the probability that the spinner landson an odd number or a number that is divisible by 3?
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  • Fall '19
  • Probability theory, Webb

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