Today It Is Estimated That About ________ Still Survive by Hunting

question 4

Multiple Choice

Today it is estimated that about ________ still survive by hunting and gathering rather than by agriculture.

• A) 5 million
• B) 2 million
• C) 750,000
• D) 400,000
• E) 250,000

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Definitions:

Scatter Diagram

A visual depiction employing points to illustrate the connection between two numerical variables.

Cov(X,Y)

The covariance between two variables X and Y, measuring how changes in one variable are associated with changes in the other.

Sample Slope Coefficient

A parameter in a linear regression equation that represents the change in the dependent variable for a one-unit change in the independent variable.

Residual

The difference between the observed and the predicted value in a regression model.