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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Definitions:

Preoperational

A stage in Piaget's theory of cognitive development (approximately ages 2-7) where children begin to use language and think symbolically, but lack logical operations.

Formal Operational

The stage in Piaget's theory of cognitive development where individuals learn to think logically about abstract concepts and hypothetical situations.

Division

A mathematical operation in which one quantity is divided by another, resulting in a quotient that shows how many times one number is contained within another.

Insecure Attachment

A type of emotional bond which is characterized by anxiety, fear, and insecurity, often resulting from inconsistent caregiver responses in early childhood.