Given an Infinite Population with a Mean of 75 and a Standard

question 51

Multiple Choice

Given an infinite population with a mean of 75 and a standard deviation of 12, the probability that the mean of a sample of 36 observations, taken at random from this population, exceeds 78 is:

• A) 0.4332 .
• B) 0.0668 .
• C) 0.0987
• D)0.9013 .

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Definitions:

Depositional Contact

The surface or boundary between two layers of rock where new sediment layers accumulate on top of existing ones.

Angular Unconformity

A geological feature where tilted or folded sedimentary rocks are overlain by younger, more flat-lying strata, indicating episodes of deformation and erosion.

Nonconformity

An unconformity in which the older rocks below the unconformity are not layered.

Geologic Relations

The study and understanding of how different geological features and processes are related or connected to each other.