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the weights of a 6 week old poults are normally distrubted with a mean 9.0 pounds...

the weights of a 6 week old poults are normally distrubted with a mean 9.0 pounds and a standard deviation 3.0 pound(s). find the 18th percentile of the weights
6.24 lb
6.86 lb
4.99 lb
7.49 lb
Math   Statistics-And-Probability   
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