A bag contains four red and five black marble. What is the probability of drawing a red marble? What is the probability of drawing two consecutive red.

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Presentation transcript:

A bag contains four red and five black marble. What is the probability of drawing a red marble? What is the probability of drawing two consecutive red marbles? What is the probability of drawing three consecutive red marbles?

There are four red, two blue, and six white marbles in a bag. What is the probability of drawing two marbles of the same color? What is the probability of drawing three marbles all of different colors?

There is a 24% chance that Jack will throw a bulls-eye with his dart. If he throws the dart three times, what is the probability of throwing at least one bulls-eye?

In a standard deck of cards, there are 26 red cards and 26 black cards. If four cards are chosen at random (without replacement), what is the probability all four will be red?

Given a group of six people, what is the probability each was born in a different month? What is the probability that at least two share a birth month?

Given a group of twenty people, what is the probability each has a different birthday? What is the probability that at least two share a birthday?

Ben is extremely good at Rock- Paper-Scissors, and wins 60% of his matches. He challenges Tommy to a best of three contest. Find the probability of all the different outcomes (Johnny wins in three, for example).

We decide to play a game where we take turns drawing cards. The winner is the first person to draw a heart. Is it better to go first or second?

On any given night, there is a 92% chance the Golden State Warriors will win a game. What is the probability they win 21 games in a row?

There are 115 boys in the junior class. If each boy has an 87% chance of finding a prom date, what is the probability every member of the class finds a date?

There are 112 boys in the senior class. How likely would it need to be for each boy to find a date to ensure a 75% chance the whole class secures dates?

The Clemson Tigers won thirteen games in a row. How likely would each individual win need to be for them to have a 60% chance of that win streak?

International Business Machines used to make business machines. Each machine had 1327 parts. How reliable would each part need to be if they demanded a 95% chance each machine functions?

Coach Gouline has a drawer with 8 black socks and 12 white socks. What is the probability he draws a matching pair?

Douglas is an accurate free-throw shooter. He makes 87% of his shots. He finishes practice by shooting free throws until he misses. What is the probability he takes exactly five shots? What is the probability he takes at least five shots?

Matt is driving home from dinner, and he has room for four passengers. Eight boys and ten girls need rides. If he chooses passengers at random, what is the probability he will drive four girls home? What is the probability he will drive two girls home?

There are 16 freshmen in Mr. Gouline’s class and 13 in Mr. Ford’s. If five freshmen are picked at random, what is the probability all come from Ford’s class? All from my class? Three from your mine and two from his?