This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Advanced > Probability Models – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Probability Models Quiz 3 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. It has been estimated that about 30% of frozen chicken contain enough salmonella bacteria to cause illness if improperly cooked. A consumer purchases 12 frozen chickens. What is the probability that the consumer will have more than 6 contaminated chickens? A) .882. B) .961. C) .039. D) .118. Show Answer Correct Answer: C) .039. 2. Which of the following is NOT a requirement of a discrete probability distribution? A) The sum of the values for the random variable x must add up to 1. B) There is a discrete numerical (not categorical) random variable x, and its number values are associated with corresponding probabilities. C) The sum of the probabilities must all add up to 1. D) Every individual probability must have a value between 0 and 1 inclusively. Show Answer Correct Answer: A) The sum of the values for the random variable x must add up to 1. 3. How many ways can a club select a president, vice president, and a secretary from a group of 5 people? A) 30. B) 12. C) 60. D) 15. Show Answer Correct Answer: C) 60. 4. If you choose from the following M & M colors, what is the probability that you choose blue?5 green6 yellow8 blue7 brown A) 1/3. B) 4/13. C) 1/4. D) 8/25. Show Answer Correct Answer: B) 4/13. 5. Darcie is making a wood shelf for displaying her plate collection. She will choose from 4 types of wood, 8 stain colors, and 2 shelf widths. How many possible outcomes of 1 type of wood, 1 stain color, and 1 shelf width are possible? A) 14. B) 42. C) 192. D) 64. Show Answer Correct Answer: D) 64. 6. What does the p stand for in the binomial probability formula? A) Probability of Successes. B) Number of trials. C) Number of Successes. D) Probability of Failures. Show Answer Correct Answer: A) Probability of Successes. 7. Find the probability of achieving success with the event:Rolling an even number on a standard six-sided die. A) 1/2. B) 2/3. C) 1/6. D) 1/3. Show Answer Correct Answer: A) 1/2. 8. What is the probability that a family doesn't have a baby girl until their third child? A) 0.15. B) 0.125. C) 0.88. D) 0.05. Show Answer Correct Answer: B) 0.125. 9. How many total outcomes are there when rolling two six-sided dice? A) 24. B) 12. C) 36. D) 6. Show Answer Correct Answer: C) 36. 10. If you draw a marble from a bag, do not replace it, and draw another, are the two events independent? A) True. B) FalseTagsCCSS.HSS.IC.A.2. C) All the above. D) None of the above. Show Answer Correct Answer: B) FalseTagsCCSS.HSS.IC.A.2. 11. A list of all possible outcomes A) Sample space. B) Odds. C) Probability. D) Experimental probability. Show Answer Correct Answer: A) Sample space. 12. Imagine you have a bag with numbers from 1 to 5, and each number is equally likely to be picked. What's the chance of picking the number 3? A) 0.5. B) 0.2. C) 0.3. D) 0.4. Show Answer Correct Answer: B) 0.2. 13. What is a Complement in probability? A) Probability of an event happening. B) Saying You look very nice today. C) Probability of an event NOT happening. D) Not here. Show Answer Correct Answer: C) Probability of an event NOT happening. 14. Eva flips a coin. If she gets heads, she wins $ 4. If she gets tails, she loses $ 3. What is her expected value of a coin flip? A) -$ 0.50. B) $ 0. C) $ 0.50. D) $ 1. Show Answer Correct Answer: C) $ 0.50. 15. 28% of all MPHS students believe Monday will be snow day. You take a sample of 50 students and find that 15 of them believe Monday will be a snow day. What is the probability of getting a sample of size 50 that has 15 or more students who believe Monday will be a snow day? A) 0.376. B) Cannot be determined because the distribution of the sample proportion of samples of size 50 is not normal. C) 0.99999. D) 0.624. Show Answer Correct Answer: A) 0.376. 16. Why might a probability model based on observed data be non-uniform? A) It's random every time. B) It doesn't use real data. C) All outcomes are equally likely. D) Some outcomes occur more frequently than others. Show Answer Correct Answer: D) Some outcomes occur more frequently than others. 17. In compound probability, if one event does not affect the other event or events, it is referred to as- A) Dependent probability. B) Experimental probability. C) Independent probability. D) Theoretical probability. Show Answer Correct Answer: C) Independent probability. 18. In a class of 30 students, 18 are girls and 12 are boys. If a student is selected at random, what is the probability that the student is a girl? A) $\frac{2}{5}$. B) $\frac{4}{5}$. C) $\frac{3}{5}$. D) $\frac{1}{2}$. Show Answer Correct Answer: C) $\frac{3}{5}$. 19. A geometric probability model follows a Bernoulli trial and: A) Has a set sample size n. B) Is looking for first success. C) All the above. D) None of the above. Show Answer Correct Answer: B) Is looking for first success. 20. A marketing survey compiled data on the number of cars in households. If X = the number of cars in a randomly selected household, and we omit the rare cases of more than 5 cars, then X has the following probability distribution:X 0 1 2 3 4 5 P(X) 0.24 0.37 0.20 0.11 0.05 0.03What is the probability that a randomly chosen household has at least two cars? A) 0.20. B) 0.61. C) 0.29. D) 0.39. Show Answer Correct Answer: D) 0.39. 21. 1 out of 8 frogs has a certain genetic trait. A scientist collects a dozen frogs and wants to know the probability that 3 or 4 will have the trait. A) 18%. B) 17%. C) 13%. D) None of the above. Show Answer Correct Answer: B) 17%. 22. In a certain town, 90% of the people drive without ever looking at their phones.In a group of 200 randomly selected citizens, what is the number of people expected to be driving without looking at their phone? A) 20. B) 90. C) 180. D) 110. Show Answer Correct Answer: C) 180. 23. If I flip a coin 10 times, how many times should I get heads? A) 10. B) 5. C) 3. D) 1. Show Answer Correct Answer: B) 5. 24. The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than "A" ? A) 2/7. B) 10/49. C) 5/49. D) 5/7. Show Answer Correct Answer: D) 5/7. 25. A customer's daily lunch spending (in dollars) over 10 days is shown:{45, 47, 48, 49, 50, 50, 50, 51, 55, 55} The mean daily spending is 50.The standard deviation is 3. How many data values fall within one standard deviation of the mean? A) $7$. B) 7 Mathematical EquivalenceON. C) All the above. D) None of the above. Show Answer Correct Answer: A) $7$. 26. Probability can be between what two numbers? A) 10 and 20. B) 0 and 100. C) 0 and 1. D) All Numbers are possible. Show Answer Correct Answer: C) 0 and 1. 27. A spinner is an example of a simulation tool. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 28. A marksman has 80% accuracy hitting targets at 1, 000 yards. What is the probability that he will make at least 4 of his next 5 shots? A) 0.4096. B) 0.7373. C) 0.1369. D) 0.032. Show Answer Correct Answer: B) 0.7373. 29. Why is it important to have equal chances in making decisions? A) Having equal chances in making decisions helps everyone be treated fairly and stops unfair preferences. B) Equal chances in making decisions are not important. C) Having equal chances actually makes decisions more unfair. D) Equal chances in making decisions only help some people, not everyone. Show Answer Correct Answer: A) Having equal chances in making decisions helps everyone be treated fairly and stops unfair preferences. 30. 1 out of every 8 frogs has a certain genetic trait. A scientist collects a dozen frogs. What is the probability that at least 2 frogs have the trait? A) 45%. B) 82%. C) 100%. D) None of the above. Show Answer Correct Answer: A) 45%. ← PreviousNext →Related QuizzesGrammar QuizzesEnglish Grammar QuizzesProbability Models Quiz 1Probability Models Quiz 2Probability Models Quiz 4Probability Models Quiz 5Probability Models Quiz 6Probability Models Quiz 7Probability Models Quiz 8Case Marking Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books