20. The maximum tension that can be tolerated by a certain type of rope is normally distributed with a mean of 150 lb and a variance of 484 lb2. What is the probability that taking such a rope at random will NOT break when subjected to 185-lb tension? a. 0.94 b. 0.52 c. 0.47 d. 0.45 c. Nonc of the above

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20. The maximum tension that can be tolerated by a certain type of rope is normally
distributed with a mean of 150 lb and a variance of 484 lb2. What is the probability that
taking such a rope at random will NOT break when subjected to 185-1b tension?
a. 0.94
b. 0.52
c. 0.47
d. 0.45
e. None of the above
Transcribed Image Text:20. The maximum tension that can be tolerated by a certain type of rope is normally distributed with a mean of 150 lb and a variance of 484 lb2. What is the probability that taking such a rope at random will NOT break when subjected to 185-1b tension? a. 0.94 b. 0.52 c. 0.47 d. 0.45 e. None of the above
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