The time it takes for a statistics professor to mark a single exam is normally distributed with a mean of 4.7 minutes and a stan- dard deviation of 2.1 minutes. There are 55 students in the professor's class. What is the probability that he needs more than 5 hours to mark all of the exams? Probability:

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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The time it takes for a statistics professor to mark a single exam
is normally distributed with a mean of 4.7 minutes and a stan-
dard deviation of 2.1 minutes. There are 55 students in the
professor's class. What is the probability that he needs more
than 5 hours to mark all of the exams?
Probability
Answer(s) submitted:
Transcribed Image Text:The time it takes for a statistics professor to mark a single exam is normally distributed with a mean of 4.7 minutes and a stan- dard deviation of 2.1 minutes. There are 55 students in the professor's class. What is the probability that he needs more than 5 hours to mark all of the exams? Probability Answer(s) submitted:
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