APFIVE Normal Distribution With Unknown Parameters
A quality control engineer knows that the breaking strength of a certain type of rope is normally distributed. If 10% of ropes have breaking strength below 160 pounds and 95% have breaking strength below 210 pounds, what percentage of ropes have breaking strength above 190 pounds?
A
20.0%
B
31.8%
C
5.0%
D
10.0%
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