An Activity Has an Optimistic Time Estimate of 7 Days,a

question 67

Multiple Choice

An activity has an optimistic time estimate of 7 days,a most likely estimate of 12 days,and a pessimistic estimate of 20 days.What is the expected standard deviation of the activity?

• A)between 2 and 3 days
• B)between 3 and 4 days
• C)between 4 and 5 days
• D)between 5 and 6 days

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Definitions:

Upper Paleolithic

The last phase of the Paleolithic age, featuring the most advanced stone tool technology and early art forms.

Acheulean Tool Tradition

A prehistoric technology associated with early humans, characterized by bifacially flaked hand axes and other tools.

Oldowan

Refers to the archaeological evidence pertaining to the use of very simple chipped stone tools by early human ancestors in the Lower Paleolithic period.

Modern Human Origins

The study of the evolutionary processes and ancestral lines that led to the emergence of Homo sapiens as a distinct species.