A PERT/CPM Activity Has an Optimistic Time Estimate of 3

question 65

Multiple Choice

A PERT/CPM activity has an optimistic time estimate of 3 days, a most likely time estimate of 8 days, and a pessimistic time estimate of 10 days. The standard deviation of this activity is:

• A) 7/9
• B) 7/6
• C) 1/3
• D) 2/3

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Definitions:

Fourth Root

The number that when multiplied by itself three times equals the original number.

Radical Equation

An equation that features a variable contained within a radical symbol or square root.

Imaginary Unit

A mathematical concept represented by \(i\), used to describe the square root of -1, fundamental in complex number theory.

Standard Form

In mathematics, standard form can refer to a way of writing numbers using the digits 0-9, with each digit having a place value. In the context of linear equations, it refers to Ax + By = C, where A, B, and C are integers.