What Two 19th Century Technologies Were Key to Encouraging Settlement

question 11

Multiple Choice

What two 19th century technologies were key to encouraging settlement in the Great Plains?

• A)Automobiles and the steel plow.
• B)The railroad and the automobile.
• C)The automobile and the airplane.
• D)The steel plow and the railroad.

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Definitions:

Least Squares Estimate

A method in statistics for estimating the best-fitting line to a set of points by minimizing the sum of the squares of the differences between the observed values and the values provided by the model.

Slope

This term describes the rate at which a line ascends or descends, calculated as the change in the y-axis divided by the change in the x-axis for any two points on the line.

Coefficient Of Determination

A statistical measure, denoted as R², that represents the proportion of the variance for a dependent variable that's explained by an independent variable(s) in a regression model.