Which among the value approximately equal to P(Z>-1.20) A.) 0.1151 B.) 0.3849 C.) 0.7698 D.) 0.8849
Which among the value approximately equal to P(Z>-1.20) A.) 0.1151 B.) 0.3849 C.) 0.7698 D.) 0.8849
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:Which among the value approximately equal
to P(Z>-1.20)
A.) 0.1151 B.) 0.3849 C.) 0.7698 D.) 0.8849
An electric firm manufacture light bulb that
have a length of life that is approximately
normally distributed with mean equal to 800
hours and a standard deviation of 40 hours.
Find the probability that a random samples of
16 bulbs will have an average life of less than
775 hours?
A.) 0.1052 B.) 0.0052 C.) 0.1062 D.) 0.0062
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