If a Project Is Expected to Be Completed in 68

question 67

Multiple Choice

If a project is expected to be completed in 68 days with a project variance of 21 days,what is the probability that the project will be completed within 90 days?

• A)between 5% and 10%
• B)between 15% and 20%
• C)between 25% and 30%
• D)none of these

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Definitions:

Empirical Rule

A statistical rule stating that for a normal distribution, nearly all data will fall within three standard deviations of the mean.

Distribution

Refers to the way in which values in a dataset are spread out or distributed.

Arithmetic Mean

The arithmetic mean is a statistical measure that represents the sum of all values in a dataset divided by the number of values.

Geometric Means

A statistical measure defined as the nth root (where n is the count of numbers) of the product of n numbers, particularly useful in calculating average rates of growth.