The True Length of Boards Cut at a Mill with a Listed

question 150

Short Answer

The true length of boards cut at a mill with a listed length of 10 feet is normally distributed with a mean of 123 inches and a standard deviation of 1 inch.What proportion of the boards will be between 121 and 124 inches?

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Definitions:

Independent Variable

A variable in an experiment or study that is manipulated to determine its effect on a dependent variable.

Dependent Variable

The variable in an experiment that is expected to change as a result of manipulations to the independent variable(s).

Verbal Punishment

A method of discipline that involves reprimanding or scolding an individual through words.

Problem Behaviors

Actions or conduct that are considered inappropriate, troublesome, or challenging, especially within a societal, educational, or psychological context.