This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Advanced > Probability Models – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Probability Models Quiz 8 (7 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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) $34$. 2. 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) 27 seconds. B) 28 seconds. C) 25 seconds. D) 26 seconds. Show Answer Correct Answer: A) 27 seconds. 3. 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) 18 combinations. C) 8 combinations. D) 12 combinations. Show Answer Correct Answer: B) 18 combinations. 4. 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. 5. 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%. 6. A model where each outcome does NOT have the same probability of occurring A) Non uniform model. B) Probability. C) Fundamental counting principal. D) Sample space. Show Answer Correct Answer: A) Non uniform model. 7. 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 QuizzesEnglish Grammar QuizzesProbability Models Quiz 1Probability Models Quiz 2Probability Models Quiz 3Probability Models Quiz 4Probability Models Quiz 5Probability Models Quiz 6Probability Models Quiz 7Case Marking Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books