A set of final examination grades in an introductory statistics course is normally distributed, with a mean of 78 and a standard deviation of 7. .a. What is the probability that a student scored below 90 on this exam? Round to 4 decimal points

A set of final examination grades in an introductory statistics course is normally distributed, with a mean of 78 and a standard deviation of 7. .a. What is the probability that a student scored below 90 on this exam? Round to 4 decimal points

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A set of final examination grades in an introductory statistics course is normally distributed, with a mean of 77 and a standard deviation of 8. Complete parts (a) through (d). Question content area bottom Part 1 a. What is the probability that a student scored below 86 on this exam? The probability that a student scored below 86 is enter your response here. (Round to four decimal places as needed.) b. What is the probability that a student scored between 69 and 100? The probability that a student scored between 69 and 100 is enter your response here. (Round to four decimal places as needed.) c. The probability is 15% that a student taking the test scores higher than what grade? The probability is 15% that a student taking the test scores higher than enter your response here. (Round to the nearest integer as needed.) d. If the professor grades on a curve (for example, the professor could give A's to the top 10% of the class, regardless…
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