If the Letters A, B, C, D, E, and F

question 64

Multiple Choice

If the letters A, B, C, D, E, and F are to be used in a five-letter code, how many different codes are possible if repetitions are not permitted?

• A) 625
• B) 720
• C) 7,776
• D) 1,296

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Definitions:

Aggregation

In psychology, a method involving the combination of multiple measurements or observations over time to obtain a more reliable estimate of a trait or behavior.

Random Errors

Errors in measurement or observation that arise from unpredictable and uncontrollable variations, leading to a lack of consistency.

Case Study Method

A research approach that involves the intensive analysis of an individual unit (such as a person or a group) to explore and understand complex issues.

Generalizable

The characteristic of research findings or statistical outcomes that can be applied to broader populations beyond the sample studied.