| 1. |
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 |
|