It Is Estimated That One Third of the General Population

question 50

Multiple Choice

It is estimated that one third of the general population has blood type . If a sample of nine people is selected at random, what is the probability that at most three of them have blood type ?

• A) 0.650
• B) 0.646
• C) 0.647
• D) 0.649
• E) 0.658

---

Definitions:

Siamese Cats

A breed of domestic cats known for their striking color contrasts, blue almond-shaped eyes, and social, vocal nature.

Procedural Memory

A memory system thought to contain information concerning actions and sequences of actions (e.g., one’s knowledge of how to ride a bicycle or swing a golf club).

Production Rules

A hypothesized mental representation of procedural memory that specifies a goal to be achieved, one or more conditions that must be true in order for the rule to be applied, and one or more actions that result from the application of the rule.

Typicality Effect

The phenomenon whereby experimental participants are faster to respond to typical instances of a concept (e.g., robin for the concept “bird”) than to atypical instances (e.g., penguin for the concept “bird”).