Q2: The diameter of the dot produced by a printer is normally distributed with a mean diameter of 0.002 inch and a standard deviation of 0.0004 inch. (a) What is the probability that the diameter of a dot exceeds 0.0026? (b) What is the probability that a diameter is between 0.0014 and 0.0026? (c) What standard deviation of diameters is needed so that the probability in part (b) is 0.995?
Q2: The diameter of the dot produced by a printer is normally distributed with a mean diameter of 0.002 inch and a standard deviation of 0.0004 inch. (a) What is the probability that the diameter of a dot exceeds 0.0026? (b) What is the probability that a diameter is between 0.0014 and 0.0026? (c) What standard deviation of diameters is needed so that the probability in part (b) is 0.995?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:Q2: The diameter of the dot produced by a printer is
normally distributed with a mean diameter of 0.002 inch
and a standard deviation of 0.0004 inch.
(a) What is the probability that the diameter of a dot
exceeds 0.0026?
(b) What is the probability that a diameter is between
0.0014 and 0.0026?
(c) What standard deviation of diameters is needed so that
the probability in part (b) is 0.995?
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