The Lakota, Comanches, and Crows of the Great Plains Were

question 39

Multiple Choice

The Lakota, Comanches, and Crows of the Great Plains were profoundly affected by the

• A) introduction of the horse into North America.
• B) introduction of wheat and rye into North America.
• C) cultivation of tobacco.
• D) introduction of settled agriculture into North America.

---

Definitions:

Electric usage

The amount of electrical energy consumed by a residence, industry, or equipment in a specific period.

Standard error of the mean

The standard deviation of the sampling distribution of the sample mean, measuring how far the sample mean of the data is likely to be from the true population mean.

Population standard deviation

The square root of the variance of a population, which measures the dispersion of a set of values relative to their mean.

Margin of error

An expression of the amount of random sampling error in a survey's results. It represents the range within which the true value lies, based on a certain confidence level.