David Wants to Look at Genetic Influences on IQ, So

question 72

Multiple Choice

David wants to look at genetic influences on IQ, so he administers a battery of tests to Frank and Fred, who are fraternal twins; Sidney and Sheldon, who are identical twins; and Larry and Harry, who are non-twin brothers. David's supervisor asks him to make a guess about which set of siblings will most likely have the most similar IQs. David's best guess would be

• A)Frank and Fred.
• B)Sidney and Sheldon.
• C)Larry and Harry.
• D)Since they're all siblings, the correlation should be about the same for all pairs.

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Definitions:

Output Quantity

The amount of goods or services produced by a company, industry, or economy within a specific period.

MR = MC Rule

The principle that a firm will maximize its profit (or minimize its losses) by producing the output at which marginal revenue and marginal cost are equal, provided product price is equal to or greater than average variable cost.

Pure Competition

Refers to a market structure where many sellers offer homogeneous products, and no single seller can influence the market price.