This quiz works best with JavaScript enabled. Home > Grammar > Advanced > Probability Models – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Probability Models Quiz 9 (17 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Suppose you buy a ticket for $ 6 out of a lottery of 1000 tickets where the prize for the one winning is to be $ 800. How much money do you take home (after paying for it)? HINT:set up a probability model. A) $ 800. B) -$ 6.50. C) -$ 6. D) -$ 5.20. Show Answer Correct Answer: D) -$ 5.20. 2. A weather model predicts a 30% chance of rain each day. If it rains for 5 days in a row, should you question the model? A) Yes, because the probability is too low for 5 consecutive rainy days. B) No, because rare events can still happen by chance. C) Yes, because the model is definitely wrong. D) No, because it always rains.TagsCCSS.HSS.IC.A.2. Show Answer Correct Answer: B) No, because rare events can still happen by chance. 3. Gavin has 7 shirts, 5 pairs of pants, and 3 pairs of shoes. How many possible outcomes of 1 shirt, 1 pair of pants, and 1 pair of shoes are possible? A) 15. B) 105. C) 3. D) 315. Show Answer Correct Answer: B) 105. 4. Which is the best way to simulate choosing one student out of 12 to be the class president? A) Draw from a bag with 12 blue marbles. B) Roll a die twice. C) Spin a spinner with 12 sections. D) Flip a coin 6 times. Show Answer Correct Answer: C) Spin a spinner with 12 sections. 5. A student group sells 500 raffle tickets for $ 2 each. At the drawing the top prize will be a gift certificate for $ 100. Second prize will be a $ 50 gift card and there will be five 3rd prizes, each a $ 20 gift card. What is the expected value of a ticket? A) Lose an average of $ 5.50. B) Lose an average of $ 1.50. C) Win an average of $ 2.00. D) Lose an average of $ 10.00. Show Answer Correct Answer: B) Lose an average of $ 1.50. 6. Is this a binomial experiment? Shuffle a deck of 52 cards. Turn over the top card. Put the card back in the deck, shuffle again. Repeat the process 50 times. Let X = the number of aces you observe. A) Yes. B) No, the trials are not independent. C) No, there are more than 2 outcomes. D) None of the above. Show Answer Correct Answer: A) Yes. 7. What part of the venn diagram does $A\cup B$ A) The middle. B) Everything not in the middle. C) Everything inside of the two circles. D) Everything outside of the two circles. Show Answer Correct Answer: C) Everything inside of the two circles. 8. Ghazal is picking out a snack. She has a banana, an orange, an apple, and a pear to choose from. Which answer choice represents the sample space? A) Banana, Orange, Apple, Pear. B) Apple. C) Picking a snack. D) Apple, Pear, Orange. E) Event. Show Answer Correct Answer: A) Banana, Orange, Apple, Pear. 9. In a tree diagram, each branch represents: A) A decision. B) A prediction. C) A rule. D) A possible outcome. Show Answer Correct Answer: D) A possible outcome. 10. A jar contains 2 green marbles, 4 blue marbles, 3 yellow marbles, and 2 black marbles. A marble is chosen at random from the jar and replaced. Then a second marble is chosen at random. Find the probability of the first marble being green and the second marble being yellow. A) 4/121. B) 8/121. C) 3/121. D) 6/121. Show Answer Correct Answer: D) 6/121. 11. A restaurant recorded its daily earnings over the course of 100 days. The data was normally distributed with a mean of $ 400 and a standard deviation of $ 50.According to the Empirical Rule, how many days did the restaurant earn between $ 400 and $ 450? A) $34$. B) 34 Mathematical EquivalenceOFF. C) All the above. D) None of the above. Show Answer Correct Answer: A) $34$. 12. 60% of the commercials aired on a network from 8 PM to 10 PM are 15 seconds long, 20% are 30 seconds long, and the rest are 60 seconds. What is the expected length of a commercial? A) 25 seconds. B) 26 seconds. C) 27 seconds. D) 28 seconds. Show Answer Correct Answer: C) 27 seconds. 13. Draw a tree diagram in your math workbook. Then answer this question. A girls' choir is choosing a uniform for their concert. They can pick red, green, or purple sweaters, and they can pick tan, white, or black skirts. The shoes they need come in gold and black. Assuming all the colors go together, how many different combinations can the choir pick? A) 3 combinations. B) 8 combinations. C) 12 combinations. D) 18 combinations. Show Answer Correct Answer: D) 18 combinations. 14. Classify:The numbers of cheeseburgers a fast-food restaurant serves each day A) Discrete. B) Continuous. C) All the above. D) None of the above. Show Answer Correct Answer: A) Discrete. 15. Suppose you flip a coin eight times. What is the probability that you'll get exactly three heads? A) 75%. B) 22%. C) 50%. D) None of the above. Show Answer Correct Answer: B) 22%. 16. A model where each outcome does NOT have the same probability of occurring A) Fundamental counting principal. B) Sample space. C) Non uniform model. D) Probability. Show Answer Correct Answer: C) Non uniform model. 17. Where do we see uneven chances in real life? A) Tossing a fair six-sided dice. B) Picking a card randomly from a well-mixed deck. C) Spinning a spinner that has different sized sections. D) Giving every team the same chance to win in a sports competition. Show Answer Correct Answer: C) Spinning a spinner that has different sized sections. ← PreviousRelated QuizzesGrammar QuizzesProbability Models Quiz 1Probability Models Quiz 2Probability Models Quiz 3Probability Models Quiz 4Probability Models Quiz 5Probability Models Quiz 6Probability Models Quiz 7Probability Models Quiz 8Case Marking QuizCase System QuizFunctional Grammar QuizIdeational Metafunction QuizInterpersonal Metafunction QuizLexical Grammar QuizLexical Relations QuizLexical Resource QuizLexical Semantics QuizMaterial Processes QuizMental Processes QuizMorphology QuizNoun Phrase Structure QuizProcess Types QuizReciprocal Trigonometric Functions QuizSemantic Fields QuizSystemic Functional Linguistics QuizTransitivity System QuizUnderstanding Connotations QuizVerbal Functions QuizVerbal Group Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books