When Activity Times Are Uncertain

question 32

Multiple Choice

When activity times are uncertain,

• A) assume they are normally distributed.
• B) calculate the expected time, using (a + 4m + b)/6.
• C) use the most likely time.
• D) calculate the expected time, using (a + m + b)/3.

---

Definitions:

Global Warming

Global warming refers to the long-term rise in Earth's average surface temperature due to human-made emissions of greenhouse gases.

Serious Climate Change

Significant alterations in global or regional climate patterns, typically linked to human activities like fossil fuel burning.

Soil Erosion

The process by which soil is removed from the land by wind, water, or other natural agents, leading to loss of fertility and land degradation.

Miles Per Hour

Measures velocity, indicating how many miles can be covered in the span of an hour.