Probability Sampling

question 28

Multiple Choice

Probability sampling:

• A) focuses on using techniques to ensure that the research sample is representative
• B) is primarily concerned with obtaining a large sample size rather than a representative sample
• C) is most commonly used in psychological research
• D) often utilizes advertising on the radio or in newspapers to recruit participants

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Definitions:

Probability Distribution

A mathematical function that defines the likelihood of obtaining the possible values that a random variable can assume.

Sampling Distribution

The pattern of probabilities that emerge from a statistic calculated from a random-sample origins.

Deli Purchases

Transactions involving the buying of food and related items from a deli or delicatessen.

Standard Deviation

An indicator of the extent of variability or distribution within a group of numbers, demonstrating how significantly each number in the collection deviates from the average.