Submitted by: Submitted by mmokim
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Pages: 6
Category: Business and Industry
Date Submitted: 12/05/2011 10:33 AM
#The Complement of an Event
1 A student is chosen at random from a class of 16 girls and 14 boys. What is the probability that the student chosen is not a girl?
2 A glass jar contains 5 red, 3 blue and 2 green jelly beans. If a jelly bean is chosen at random from the
jar, what is the probability that it is not blue?
3 A number between 1 and 5 is chosen at random. What is the probability that the number chosen is not odd?
4 If a number is chosen at random from the following list, what is the probability that it is not prime?
2, 3, 5, 7, 11, 13, 17, 19
5 If a single 6-sided die is rolled, what is the probability of rolling a number that is not 8?
#Addition Rules for Probability
1 A day of the week is chosen at random. What is the probability of choosing a Monday or Tuesday?
2 In a pet store, there are 6 puppies, 9 kittens, 4 gerbils, and 7 parakeets. If a pet is chosen at random, what is the probability of getting a puppy or a parakeet?
3 The probability of a New York teenager owning a skateboard is 0.37,of owning a bicycle is 0.81, and of owning both is 0.36. If a New York teenager is chosen at random, what is the probability that he/she owns
a skateboard or a bicycle?
4 A number between 1 and 10 is chosen at random. What is the probability of getting a 5 or an even number?
5 A single 6-sided die is rolled. What is the probability of getting a number greater than 3 or an even number?
#Probability of Independent Events
1 Spin a spinner numbered 1 to 7, and toss a coin. What is the probability of getting an odd number on the spinner and tail on the coin?
2 A jar contains 6 red balls, 3 green balls, 5 white balls, and 7 yellow balls. Two balls are chosen from the jar, with replacement. What is the probability that both balls are green?
3 In Exercise 2, what is the probability of getting a red and a yellow ball?
4 Four cards are chosen from a...