If a Distribution Is Normal with μ = 50 and σ

question 9

Multiple Choice

If a distribution is normal with μ = 50 and σ = 10, then what proportion of the scores will fall between 40 and 60?

• A).1359
• B).3413
• C).6826
• D).9544

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Definitions:

Chi-Squared Distribution

A probability distribution used in hypothesis testing that is applicable to categorical data and tests of independence.

Standard Normal Distribution

A normal distribution with a mean of zero and a standard deviation of one, used as a basis in probability theory.

Nominal Data

Nominal data refers to categorical data that can be named or labeled but not meaningfully ordered.

Confidence Interval

A set of values, procured from sample-based observations, deemed likely to hold the value of a non-specified population characteristic.