The Most Convincing Evidence Indicates That Camels Were Introduced to the Sahara

question 45

Multiple Choice

The most convincing evidence indicates that camels were introduced to the Sahara from

• A) Arabia.
• B) North Africa and the Mediterranean coast.
• C) India, via the Indian Ocean trade.
• D) West Africa.
• E) they used camels indigenous to the area.

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Definitions:

Demographic Variables

Characteristics of subjects that are often used to segment populations, such as age, gender, income, and education.

Significance Level

A rephrased version: The critical value that defines the cutoff for statistical significance in testing hypotheses, representing the risk of concluding a false positive.

Multiple Regression

A statistical tool that uses multiple variables as inputs to project the outcome of a related response variable.

Stepwise Regression

A method of regression analysis that involves automatically adding or removing predictor variables to a model to optimize some criterion.