Examlex
For a normal probability distribution,about 95 percent of the area under normal curve is within plus and minus two standard deviations of the mean and practically all (99.73 percent)of the area under the normal curve is within three standard deviations of the mean.
Investigation
The systematic examination or inquiry into something to establish facts and reach new conclusions.
Materials Price Variance
It measures the difference between the actual cost of materials used in production and the expected (standard) cost.
Price Standard
A predetermined cost that management believes should be paid for an item, often used in budgeting and variance analysis.
Pounds
A unit of mass in the imperial system, symbolized as lb.
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