The Lengths of Brook Trout Caught in a Certain Colorado

question 43

Multiple Choice

The lengths of brook trout caught in a certain Colorado stream are normally distributed with a mean of 14 inches and a standard deviation of 3 inches. The first quartile for the lengths of brook trout would be:

• A)16.01 inches.
• B)11.00 inches.
• C)11.98 inches.
• D)10.65 inches.Using Excel =NORM.INV(.25,14,3) = 11.98, or Q₁ = 14 - 0.675(3) = 11.975 using AppendixC.

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