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Historically, scores on the semester exam for a particular college professor are normally distributed with a mean of 74 and a standard deviation of 8.5. A student scores 92 on the exam. How many standard deviations from the mean is this score? A) 18 B) 8.5 C) 1.13 D) 2.12

Answer»

Historically, scores on the SEMESTER exam for a particular COLLEGE professor are normally distributedMean = 74 standard deviation of 8.5A student scores 92 on the exam.To FIND :  How many standard deviations from the mean is this score?A) 18 B) 8.5 C) 1.13 D) 2.12Solution:Mean = 74 standard deviation = 8.5Score = 92Let say n standard deviations away from the mean is scoren ( SD) =  | Value - Mean |=> n ( 8.5) = | 92 - 74 |=> n(8.5) = 18=> n = 18/8.5=> n = 2.1176=> n = 2.122.12  standard deviations from the mean is scoreLearn More : Assume that ADULTS have iq scores that are normally distributed with ... brainly.in/question/11133397 The value of the cumulative standardized normal distribution at z is ... brainly.in/question/11376268 Use technology or the z-distribution table on pages A-1 to A-2 in the ... brainly.in/question/13301238



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