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P(X≥a)=0.5

What is the value of a?                                                 

 

 

 

The lengths of trout in a lake are normally distributed with a mean of 30 inches and a standard deviation of 4.5 inches.

What is the z-score of a trout with a length of 28.2 inches?

 Mar 22, 2018
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Can someone please answer this question? Please....thanks!

 May 25, 2018

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