Fact 1. The weights of students in a class are normally distributed…

Question Answered step-by-step Fact 1. The weights of students in a class are normally distributed… Fact 1. The weights of students in a class are normally distributed with a mean of 75 poundsand a variance of 36 pounds 2 . Use this information and the empirical rule to help answer thenext 4 questions.1) The probability that a student weighs more than 81 pounds is,a) 0.5b) 0.135c) 0.16d) 0.842) The probability that a student weighs between 57 and 75 pounds is,a) 0.4985b) 0.5c) 0.475d) 0.00153) The probability that a student weighs less than 69 pounds is,a) 0.84b) 0.135c) 0.0235d) None of the above.4) Suppose a person is in the 84th percentile, this mean that the person weighs,a) More than 84 pounds.b) More than 81 pounds.c) Less than 81 pounds.d) Less than 69 pounds.  Fact 3. A mail order marketing firm sends 20 flyers to potential customers. Historically 25% of allrecipients respond to this flyer. Use this information to help answer the next 3 questions.5) What is the probability that exactly 4 people respond to the flyer?a) 0.1339b) 0.0039c) 0.8661d) None of the above. 6) What is the probability that between 3 and 6 people respond to the flyer?a) 0.5928b) 0.5c) 0.5259d) None of the above.7) The expected number of responses to the flyer is.a) 15b) 1.936c) 6.157d) 5e) None of the above. Math Statistics and Probability MATH MDM4U Share QuestionEmailCopy link Comments (0)