THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 5

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A college administers for all its courses a student evaluation questionnaire.For a random sample 12 courses the accompanying table shows both the average student ratings of the instructor (on a scale from 1 to 5),and the average expected grades of the students (on a scale from 0 to 4).

-What does the least-squares criterion have to do with obtaining a regression line for a given set of data?

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Definitions:

Savanna

A mixed ecosystem characterized by the coexistence of trees and grasses, typically found in regions with a seasonal rain pattern.

Tundra

Tundra is a biome characterized by cold climates, minimal tree growth, and short growing seasons, found primarily in the Arctic regions and atop high mountains.

Alpine Lake

A high-altitude lake, typically found in mountainous regions, formed in valleys carved by glaciers and known for its clear, cold waters.

Species Richness

A measure of the number of different species present in a specific ecological community or region.