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Virty [35]
2 years ago
7

American football is the highest-paying sport on a per-game basis. Given that the quarterback is considered the most important p

layer on the team, he is typically well-compensated. A sports statistician examines the factors that influence a quarterback’s salary. He believes that a quarterback’s pass completion rate is the most important variable affecting salary. He also wonders how total touchdowns scored and a quarterback’s age might impact salary. The statistician collects data on salary (Salary in $ millions), pass completion rate (PC in %), total touchdowns scored (TD), and age for 32 quarterbacks during a recent season. A portion of the data is shown in the accompanying table.
Player Salary PC TD Age
1 25.5566 65.2 28 27
2 22.0441 60.5 27 26
⋮ ⋮ ⋮ ⋮ ⋮
32 0.6260 63.1 26 29

Click here for the Excel Data File

a. Estimate the model defined as Salary = β0 + β1PC + β2TD + β3Age + ε. (Round your answers to 2 decimal places. Negative values should be indicated by a minus sign.)




b. Interpret the slope coefficient attached to TD.

multiple choice
All else constant, a quarterback’s salary is expected to increase by approximately $790,000 for each additional touchdown.
A younger quarterback is expected to throw 79 touchdowns a season.
An older quarterback is expected to throw 79 touchdowns a season.
As a quarterback’s salary increases by $1,000,000, he is expected to throw 79 touchdowns a season, all else constant.


c. Player 8 earned 12.9895 million dollars during the season. According to the model, what is his predicted salary if PC = 70.6, TD = 34, and Age = 30? (Do not round intermediate calculations. Round final answer to 2 decimal places.)



d. Player 16 earned 8.0073 million dollars during the season. According to the model, what is his predicted salary if PC = 65.7, TD = 28, and Age = 32? (Do not round intermediate calculations. Round final answer to 2 decimal places.)




e-1. Compute the residual salary for Player 8 and Player 16. (Negative values should be indicated by a minus sign. Round final answer to 2 decimal places.)



e-2. Interpret the residual salary for Player 8 and Player 16.
Mathematics
1 answer:
vodka [1.7K]2 years ago
7 0

Answer:

wtfx

Step-by-step explanation:

asdadsasdds

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Which expressions represent the area of the entire shaded region, including the light and dark shading? select three options. 12
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A triangle is a polygon. The total area of the figure can be represented by 12a, (6a+b), and 2b cm².

<h3>What is a triangle?</h3>

A triangle is a polygon with 3 sides and 3 vertices.

Since the area of a single triangle is a cm², and the shape is formed of 12 triangles, therefore, the area of the 12 triangles will be equal to,

\text{Area of the complete figure} = 12 \times a = 12a\rm \ cm^2

Given that the area of the complete dark portion is b cm², therefore, the area of the 6 triangles with a cm² of area each, and the black portion can be written as,

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As the dark portion also consists of 6 triangles with an area of a cm² each and the total sum of this dark area is b cm². Also, the light portion consists of 6 triangles with an area of a cm². Therefore, the total area can be written as,

\text{Total area} = 6a+6a = b+b = 2b\rm\ cm^2

Thus, the total area of the figure can be represented by 12a, (6a+b), and 2b cm².

Learn more about Triangles:

brainly.com/question/2773823

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