A Population Has a Mean of 400 and a Standard

question 40

Multiple Choice

A population has a mean of 400 and a standard deviation of 25. A sample of 100 observations will be taken. The probability that the sample mean will be greater than 405 is

• A) .9772.
• B) .0228.
• C) .4207.
• D) .3805.

---

Definitions:

Continuous Change

A process where variables or conditions evolve over time without abrupt interruptions.

Discontinuous Change

Abrupt, non-linear transformations in development or processes that can significantly alter conditions or outcomes.

Lifespan

The maximum duration of life of a species, or the period during which an individual's physical and cognitive functions develop, mature, and decline.