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1. Find the indicated probability. A die with 12 sides is rolled. What is the probability of rolling a number less than 11? A. 1/12 11/12 5/6 B. C. D. 10 2. From the information provided, create the sample space of possible outcomes. Friskie is having her fifth litter. The prior litters have either been three normal pups or two normal pups and a runt. Assume the probability of either outcome is 50%. A. NR NNR NNR B. N NN NR NNN NRN C. NNR NNN D. NNN RNN NR 3. Answer the question. In a certain town, 10% of people commute to work by bicycle. If a person is selected randomly from the town, what are the odds against selecting someone who commutes by bicycle? A. 9 : 1 B. 9 : 10 C. 1 : 9 D. 1 : 10 4. Determine whether the events are mutually exclusive. Find a ten dollar bill on the sidewalk. Find a ten dollar bill on the grass. A. No B. Yes 5. Find the indicated probability. Find P(A), given that P(A) = 0.662. A. 1.511 B. 0.338 C. 1.662 D. 0 6. Find the indicated probability. Of the 52 people who answered "yes" to a question, 5 were male. Of the 77 people that answered "no" to the question, 11 were male. If one person is selected at random from the group, what is the probability that the person answered "yes" or was male? A. 0.488 B. 0.124 C. 0.096 D. 0.527 7. Find the indicated probability. The table below describes the smoking habits of a group of asthma sufferers. If one of the 1119 people is randomly selected, find the probability of getting a regular or heavy smoker. A. 0.089 B. 0.198 C. 0.130 D. 0.450 Is Event B dependent or independent of Event A? A: A mosquito lands on your arm. B: You get a mosquito bite. A. Dependent B. Independent 9. Find the indicated probability. A bin contains 71 light bulbs of which 9 are defective. If 6 light bulbs are randomly selected from the bin with replacement, find the probability that all the bulbs selected are good ones. A. 0.443 B. 0.873 C. 0 D. 0.489 10. Find the indicated probability. Among the contestants in a competition are 42 women and 28 men. If 5 winners are randomly selected, what is the probability that they are all men? A. 0.00812 B. 0.07776 C. 0.11553 D. 0.13169 11. Provide a written description of the complement of the given event. When several textbooks are returned from editing, none of the books are found to be errorless. A. At least one of the textbooks is errorless. B. None of the textbooks are errorless. C. All of the textbooks are errorless. 12. Find the indicated probability. A study conducted at a certain college shows that 53% of the school's graduates find a job in their chosen field within a year after graduation. Find the probability that among 7 randomly selected graduates, at least one finds a job in his or her chosen field within a year of graduating. A. 0.995 B. 0.530 C. 0.988 D. 0.143 13. Evaluate the expression. 10!/4! A. 2! B. 5/2 C. 40,000 D. 151,200 14. Solve the problem. The library is to be given 3 books as a gift. The books will be selected from a list of 18 titles. If each book selected must have a different title, how many possible selections are there? A. 816 B. 6.402373706e+15 C. 1.067062284e+15 D. 4896 15. Solve the problem. A tourist in France wants to visit 10 different cities. If the route is randomly selected, what is the probability that she will visit the cities in alphabetical order? A. 1/3,628,800 B. 3,628,800 C. 1/10 D. 1/100 * 1 hour ago * - 3 days left to answer.

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1. 1. P(X<11) = 10/12 = 5/6 2. NNN RNN NR 3. 9:10 4. No because the sidewalk may have grass 5. Given that P(A) = 0.662, P(A|A) = 1/0.662 = 1.511 times the P(A) taken at normal set 6. P(probability "yes" or male) = (52 + 11)/(52 + 77) = 0.488 7. P(regular or heavy smoker) = (regular or heavy smoker) /1119 8. Dependent 9. With replacement, P(6 good) = ((71-9)/71)^6 = 0.443 10. Men = 28, Women = 42, All = 70, After 5 pick = 70 -5 = 65, After 5 pick men = 28 - 5 = 23 P(5 Men) = (28!/23!)/(70!/65!) = 0.00812 11. All of the textbooks are errorless 12. p=0.53, q = 1-0.53 = 0.47 P(X>=1) = 1 - P(X=0) = 1 - 0.47^7 = 0.995 13. 151,200 14. 18C3 = 816 15. 1/10! = 1/3,628,800