Find the Least-Squares Regression Line and Use the Line to Make

question 175

Multiple Choice

Find the Least-Squares Regression Line and Use the Line to Make Predictions
-In order for a company's employees to work in a foreign office, they must take a test in the language of the country where they plan to work. The data below shows the relationship between the number of years that employees have studied a particular language and the grades they received on the proficiency exam. Find the equation of the regression line for the given data.
$\begin{array}{l|c|c|c|c|c|c|c|c|c|}\text { Number of years, } \mathrm{x} & 3 & 4 & 4 & 5 & 3 & 6 & 2 & 7 & 3 \\\hline \text { Grades on test, } \mathrm{y} & 61 & 68 & 75 & 82 & 73 & 90 & 58 & 93 & 72\end{array}$

• A) \(\hat {y} = 6.91 x + 46.26\)
• B) \(\hat { y } = 6.91 \mathrm { x } - 46.26\)
• C) \(\hat {y} = 46.26 x - 6.91\)
• D) \(\hat { y } = 46.26 x + 6.91\)

Understand the application of soil analysis in forensic investigations.

Analyze how soil characteristics can differ or remain consistent across geographical locations.

Evaluate the evidentiary value of soil in solving crimes.

Understand the structure and function of plant tissues and cells, including phelloderm, cork cambium, cork, and vascular tissues.

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Definitions:

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A foundational document adopted by the United Nations in 1948, outlining the rights and freedoms entitled to all human beings.

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