Which of the Following Is True for Most Distributions?​

question 36

Multiple Choice

Which of the following is true for most distributions?​

• A)Around 30% of the scores will be located within one standard deviation of the mean.​
• B)​Around 50% of the scores will be located within one standard deviation of the mean.
• C)​Around 70% of the scores will be located within one standard deviation of the mean.
• D)​Around 90% of the scores will be located within one standard deviation of the mean.

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Definitions:

Hypothesis

A proposed explanation for a phenomenon, made as a starting point for further investigation, which can be tested through experimentation or observation.

Assumptions

Premises or conditions accepted as true without proof, used as the basis for further reasoning or argument.

Null Hypothesis

A statement in statistical inference that proposes there is no significant effect or difference between specified populations or parameters.

One-Sample Test

A statistical method used to determine if there is a significant difference between the mean of a single sample and a known or hypothesized population mean.