A Statistics Class Has 50% Females and 50% Males

question 38

Multiple Choice

A statistics class has 50% females and 50% males.A researcher randomly selects a sample that has 80% males and 20% females.Why should the researcher be cautious of making inferences about the entire class based on the sample?

• A)Because,by luck of the draw,the sample is unrepresentative of the population.
• B)Because,by luck of the draw,the sample is representative of the population.
• C)Because,by luck of the draw,the opinions of the females in the sample will not be the same as those of the females in the population.
• D)Because,by luck of the draw,the sample was too small.

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Definitions:

Value

The worth of an asset or service, determined by factors such as market demand, utility, and costs of production.

Black-Scholes

A mathematical model used to price European style options, estimating the variation over time of financial instruments.

European Options

Derivative securities that can only be exercised at the expiration date, not before, contrasting with American options which can be exercised at any point before expiration.

Pricing Model

A theoretical construct that uses mathematical formulas to estimate the appropriate price of a security or asset.