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The scores on a test have a normal distribution with a mean of 55 and standard deviation of 8 . (a) What is the probabil
Posted: Wed Jul 13, 2022 5:07 am
by answerhappygod
- The Scores On A Test Have A Normal Distribution With A Mean Of 55 And Standard Deviation Of 8 A What Is The Probabil 1 (28.51 KiB) Viewed 19 times
The scores on a test have a normal distribution with a mean of 55 and standard deviation of 8 . (a) What is the probability that a randomly selected student will score (i) More than 69 ? (ii) Less than 45 ? (b) In a sample of 100 students, how many would you expect to have a score between 49 and 63 ?