This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Advanced > Probability Models – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Probability Models Quiz 6 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The probabilty of an event given that another event has already occurred A) Unconditional Probability. B) Analyzing data. C) Conditional Probability. D) False Negative. Show Answer Correct Answer: C) Conditional Probability. 2. A list of each possible outcome along with its probability A) Uniform probability model. B) Non-uniform probability model. C) Probability model. D) Tree diagram. Show Answer Correct Answer: C) Probability model. 3. A model predicts a coin lands heads up with probability 0.5. If you flip the coin 10 times and get 8 heads, should you immediately reject the model? A) No, because the model is always correct.TagsCCSS.HSS.IC.A.2. B) Yes, because the coin is biased. C) No, because this can happen by chance. D) Yes, because the probability is too high. Show Answer Correct Answer: C) No, because this can happen by chance. 4. If U = {1, 3, 5, 7, 9, 11, 13}, then which of the following are subsets of U. A) D = {0}. B) B = {13, 7, 9, 11, 5, 3, 1}. C) A = {2, 4}. D) C = {2, 3, 4, 5}. Show Answer Correct Answer: B) B = {13, 7, 9, 11, 5, 3, 1}. 5. Which of the following is NOT an example of independent events? A) Rolling two dice at the same time. B) Drawing two cards from a deck without replacement. C) Tossing a coin and spinning a spinner. D) Flipping two coins.TagsCCSS.HSS.IC.A.2. Show Answer Correct Answer: B) Drawing two cards from a deck without replacement. 6. A model says a fair die will land on each number with probability $\frac{1}{6}$ A) Yes, because 6 is the least likely number.TagsCCSS.HSS.IC.A.2. B) Yes, because it is possible by chance. C) No, because it should be exactly 2 times. D) No, because the probability is too low. Show Answer Correct Answer: B) Yes, because it is possible by chance. 7. If you choose 1 scoop of ice cream from 12 flavors and any 1 topping from a choice of 8, how many different ice-cream sundaes can you make? A) 96. B) 20. C) 192. D) 58. Show Answer Correct Answer: A) 96. 8. Suppose 12% of the engines manufactured on a certain assembly line have at least one defect. What is the expected number of engines you expect to find WITHOUT a defect? A) 8. B) 1. C) 12. D) None of the above. Show Answer Correct Answer: B) 1. 9. A model says a spinner lands on red 25% of the time. In 20 spins, it lands on red 10 times. Is this result consistent with the model? A) Yes, because 10 out of 20 is 50%. B) No, because it should be exactly 5 times. C) Yes, because there is variability in small samples. D) No, because the spinner is unfairTagsCCSS.HSS.IC.A.2. Show Answer Correct Answer: C) Yes, because there is variability in small samples. 10. Determine the likelihood of the following event:Drawing a red card from a standard deck of cards A) 1/4. B) 13/52. C) 4/52. D) 1/2. Show Answer Correct Answer: D) 1/2. 11. What is the complement of choosing a red marble if there are 8 red marbles in a jar of 15? A) P' = 7/15. B) P' = 3/15. C) P' = 8/15. D) P' = 15/8. Show Answer Correct Answer: A) P' = 7/15. 12. An orchard owner knows that he'll have to use about 6% of the apples he harvests for cider because they are bruised or blemishes. He expects a tree to produce about 300 apples. What is the probability that less than 20 apples will be used for cider? A) 74%. B) 65%. C) 26%. D) None of the above. Show Answer Correct Answer: B) 65%. 13. A manufacturer tests a certain number of headsets that are produced each day. There is a 2.5% chance of finding a defective headset. If 280 units of that model are tested, the manufacturer would expect to find approximately ..... headsets without any defects. A) 273. B) 7. C) 140. D) 25. Show Answer Correct Answer: A) 273. 14. Decide whether a binomial model applies and explain why or why not. Counting the number of times a waiter drops his tray during his shift. A) Yes, a binomial model applies. B) No, there are more than two outcomes. C) No, the probability varies depending on what he carries. D) None of the above. Show Answer Correct Answer: C) No, the probability varies depending on what he carries. 15. What type of event is "rolling an even number then a 6" on a single die? A) Compound event. B) Single event. C) Impossible event. D) Certain event. Show Answer Correct Answer: A) Compound event. 16. When rolling a die twice, what's the probability of getting a 1 both times? A) 2/6. B) 1/12. C) 1/36. D) 1/18. Show Answer Correct Answer: C) 1/36. 17. If you have a long rope and you dye a segment of it, what's the probability you'll grab the dyed part? A) Length of the entire rope / Length of the dyed segment. B) Length of the dyed segment-Length of the entire rope. C) Length of the dyed segment / Length of the entire rope. D) Length of the dyed segment * Length of the entire rope. Show Answer Correct Answer: C) Length of the dyed segment / Length of the entire rope. 18. Lena has a 90% chance of completing a task at work. Marcus has an 80% chance of completing a task at work. Assume that Lena's chance of completing a task does not affect Marcus's chance of completing a task. What is the probability that neither Lena nor Marcus completes their task? Write your answer as a decimal. A) $0.02$. B) 0.02 Mathematical EquivalenceON. C) All the above. D) None of the above. Show Answer Correct Answer: A) $0.02$. 19. A model predicts that a basketball player makes 80% of free throws. If the player misses 4 free throws in a row, does this result alone prove the model is wrong? A) No, because unlikely events can still occur. B) Yes, because the model is inconsistent. C) No, because the player is not trying.TagsCCSS.HSS.IC.A.2. D) Yes, because the player should make most shots. Show Answer Correct Answer: A) No, because unlikely events can still occur. 20. How do you calculate the experimental probability of an event? A) Experimental probability = (Number of times the event does not occur) / (Total number of trials). B) Experimental probability = (Number of times the event occurs) / (Total number of trials). C) Experimental probability = (Total number of trials) / (Number of times the event occurs). D) Experimental probability = (Number of successful outcomes) / (Total number of possible outcomes). Show Answer Correct Answer: B) Experimental probability = (Number of times the event occurs) / (Total number of trials). 21. A coin is flipped 3 times. If you get tails once you get $ 5, tails twice you get $ 15, and tails on all three flips you get $ 40. What is the expected amount of money you will get? Hint:draw a tree diagram to determine the probability of each outcome, you should have 3 events, then set up the probability model. A) $ 7.50. B) $ 5. C) $ 10. D) $ 12.50. Show Answer Correct Answer: D) $ 12.50. 22. Classify:Height of a plant measured each day for 30 days. A) Discrete. B) Continuous. C) All the above. D) None of the above. Show Answer Correct Answer: B) Continuous. 23. Find the probability of achieving success with the event:Drawing a black card from a standard deck of cards. A) 1/3. B) 3/4. C) 1/2. D) 1/4. Show Answer Correct Answer: C) 1/2. 24. What does it mean if two events are independent? A) The occurrence of one event affects the occurrence of the other. B) Two events are independent if the occurrence of one event does not affect the occurrence of the other. C) Two events are independent if they occur at the same time. D) Two events are independent if they are both impossible. Show Answer Correct Answer: B) Two events are independent if the occurrence of one event does not affect the occurrence of the other. 25. Which of the following is a dependent event? A) Rolling a die and flipping a coin. B) Drawing two cards from a deck without replacement. C) Tossing two coins. D) Rolling two dice.TagsCCSS.HSS.IC.A.2. Show Answer Correct Answer: B) Drawing two cards from a deck without replacement. 26. Which scenario represents a uniform probability model? A) A weighted die used in a game. B) A coin with equal chances of heads and tails. C) Choosing the best player based on skill. D) A spinner with unequal-sized sections. Show Answer Correct Answer: B) A coin with equal chances of heads and tails. 27. Which of the following represents a simulation of drawing a card from a deck? A) Using a random number generator. B) Physically drawing from a real deck. C) Using a coin toss. D) Guessing randomly. Show Answer Correct Answer: A) Using a random number generator. 28. What tool is best used to represent all outcomes of flipping two coins? A) Line Plot. B) Histogram. C) Tree diagram. D) Bar graph. Show Answer Correct Answer: C) Tree diagram. 29. A computer chip company manufacturer rejects 2% of the chips produced because they fail presale testing. How many do you expect to test before finding a bad one? A) 2. B) 1. C) 50. D) None of the above. Show Answer Correct Answer: C) 50. 30. The Gallup Poll asked a random sample of 1785 adults whether they attended church during the past week. Let p-hat be the proportion of people in the sample who attended church. A newspaper report claims that 40% of all U.S. adults went to church last week. Suppose this claim is true. Calculate the standard deviation of the sampling distribution. A) 0.0116. B) 0.0119. C) 0.0118. D) 0.0117. Show Answer Correct Answer: A) 0.0116. ← PreviousNext →Related QuizzesGrammar QuizzesEnglish Grammar QuizzesProbability Models Quiz 1Probability Models Quiz 2Probability Models Quiz 3Probability Models Quiz 4Probability Models Quiz 5Probability Models Quiz 7Probability Models Quiz 8Case Marking Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books