Normal Distribution With Unknown Parameters
The breaking strengths for a certain type of rope are normally distributed. Ten percent of the ropes have a breaking strength less than 160 pounds, and 95 percent of the ropes have a breaking strength less than 210 pounds. What is the approximate percentage of ropes with a breaking strength greater than 190 pounds?
A
20.0%
B
10.0%
C
31.8%
D
5.0%
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