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The distribution of scores on a recent test closely followed a Normal Distribution with a mean of 22 points and a standa
Posted: Wed Jul 06, 2022 12:11 pm
by answerhappygod
- The Distribution Of Scores On A Recent Test Closely Followed A Normal Distribution With A Mean Of 22 Points And A Standa 1 (25.87 KiB) Viewed 14 times
The distribution of scores on a recent test closely followed a Normal Distribution with a mean of 22 points and a standard deviation of 2 points. For this
question, DO NOT apply the standard deviation rule. (a) What proportion of the students scored at least 21 points on this test, rounded to five decimal places? (b) What is the 31 percentile of the distribution of test scores, rounded to three decimal places?