Consider the Following Work Breakdown Structure What Is the Estimated Standard Deviation in the Time for c

question 27

Multiple Choice

Consider the following work breakdown structure: $$\begin{array}{l}\begin{array} { l c c c c } &&&\text { Time Estimates (days) }\\\text { Activity } & \text { Precedes } & \text { Optimistic } & \text { Most Likely } & \text { Pessimistic } \\\hline \text { Start } & \text { A, B } & - & - & - \\\text { A } & \text { C, D } & 44 & 50 & 56 \\\text { B } & \text { D } & 45 & 60 & 75 \\\text { C } & \text { E } & 42 & 45 & 48 \\\text { D } & \text { F } & 31 & 40 & 49 \\\text { E } & \text { F } & 27 & 36 & 39 \\\text { F } & \text { End } & 58 & 70 & 82\end{array}\end{array}$$ What is the estimated standard deviation in the time for activity E?

• A) 1 days
• B) 2 days
• C) 3 days
• D) 4 days
• E) 5 days

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Definitions:

Alkenes

Unsaturated hydrocarbons containing at least one carbon-carbon double bond, with the general formula CnH2n.

Stereochemistry

The study of the three-dimensional arrangement of atoms within molecules and the impact of this arrangement on chemical reactions and properties.

Product

A substance that is formed as the result of a chemical reaction.

Reaction

A process in which substances interact to form one or more new substances with different chemical and physical properties.