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Mathematics 8 Online
OpenStudy (anonymous):

Weights of Pacific yellowfin tuna follow a normal distribution with mean weight 68 lbs and standard deviation 12 lbs. A Pacific yellowfin tuna is caught at random. What is the probability that its weight is between 55 and 88 lbs?

OpenStudy (anonymous):

I got both z's. p(-1.08<x<1.66) I have tried putting it in the calculator and it's not working so please help me do this by hand. Also b on this question is: Fishermen cannot keep yellowfin tuna that weigh less than a certain amount. What would the weight be if they end up having to throw back 4.25% of the fish they caught? Im just checking that one, I got 47.36 fish.

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