A test-scoring machine is known to record an incorrect grade on 5% of the exams it grades.
Question:
A test-scoring machine is known to record an incorrect grade on 5% of the exams it grades.
Use the appropriate method to find the probability that the machine records the following:
a. Exactly 3 wrong grades in a set of 5 exams
b. No more than 3 wrong grades in a set of 5 exams
c. No more than 3 wrong grades in a set of 15 exams
d. No more than 3 wrong grades in a set of 150 exams
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Related Book For 
Just The Essentials Of Elementary Statistics
ISBN: 9780495314875
10th Edition
Authors: Robert Johnson, Patricia Kuby
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