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LUCKY_DIMON [66]
3 years ago
12

Consider a regression study involving a dependent variable y, a quantitative independent variable x1, and a categorical independ

ent variable with three possible levels (level 1, level 2, and level 3).
1) How many dummy variables are required to represent the categorical variable?

2.) Write a multiple regression equation relating x1 and the categorical variable to y.

3) interpret the parameters in your regression equation.

Mathematics
1 answer:
aliina [53]3 years ago
6 0

Answer:

Detailed step wise solution is attached below:

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You keep, change, and flip.

Keep 5, change ÷ into x, and flip 3/4 into 4/3.

5 x 4/3 = 20/3 = 6 and 2/3.

That's the answer: 20/3 or (6 and 2/3).

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Find the image of (-1,3) obtained by translating 2 units down, followed by a rotation of 270 degrees counterclockwise about the
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Answer:

[1, 1]

Step-by-step explanation:

Translation → [-1, 3] moves down to [-1, 1]

Now, a <em>90°-clockwise rotation</em> is the exact same as a <em>270°-counterclockwise rotation</em>, and according to the <em>270°-counterclockwise rotation</em> [<em>90°-clockwise rotation</em>] <em>rule</em>, you take the y-coordinate, bring it over to your new x-coordinate, and take the OPPOSITE of the x-coordinate and set it as your new y-coordinate:

<u>Extended Rotation Rules</u>

  • 270°-clockwise rotation [90°-counterclockwise rotation] >> (<em>x, y</em>) → (<em>-y, x</em>)
  • 270°-counterclockwise rotation [90°-clockwise rotation] >> (<em>x, y</em>) → (<em>y, -x</em>)
  • 180°-rotation >> (<em>x, y</em>) → (<em>-x, -y</em>)

Then, you perform your rotation:

270°-counterclockwise rotation [90°-clockwise rotation] → [-1, 1] moves to [1, 1]

I am joyous to assist you anytime.

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3 years ago
WILL MARK YOU BRAINLIEST!!!!
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