An Urn Contains 12 Balls, Five of Which Are Red

question 145

Multiple Choice

An urn contains 12 balls, five of which are red. The selection of a red ball is desired and is therefore considered to be a success. If a person draws three balls from the urn, what is the probability of two successes?

• A) 0.1591
• B) 0.3182
• C) 0.6810
• D) 0.8409

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Definitions:

Instinct

An innate, typically fixed pattern of behavior in animals in response to certain stimuli that is biologically driven rather than learned.

Reproductive Value

An evolutionary concept indicating an individual's potential future reproductive output.

Sexual Selection

A mode of natural selection where individuals with certain inherited characteristics are more likely than others to obtain mates, influencing the reproductive success of organisms.

Bright Coloration

A characteristic of an organism's appearance involving vivid colors, which can serve various functions such as attraction, camouflage, or warning.