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Dima020 [189]
2 years ago
6

Help :( I need this :)

Mathematics
1 answer:
valina [46]2 years ago
8 0

Answer:

you can put in any of the numbers that are already listed in the x values. You can put 5, 14, -1, and 23 because something can't be a function if x values repeat.

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You are considering developing a regression equation relating a dependent variable to two independent variables. One of the vari
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Answer:

Step-by-step explanation:

a. How many dummy variables are needed to represent the categorical variable?

We need 1 less dummy variable than outcomes for the categorical variable.

categorical variable has 2 outcomes

So, we need 2-1 = 1 dummy variable.

Answer: 1

Note: If our categorical variable had 5 outcomes, we would need 5-1 = 4 dummy variables.

b. Write the multiple regression equation relating the dependent variable to the independent variables.

Note: Depending your your professor, this can be written one of the following ways...

yhat = a + b1 x1 + bx2

yhat = b0 + b1 x1 + b2 x2

yhat = beta0hat + beta1hat x1 + betahat2 x2

where x1 is the ratio variable

and x2 is the dummy variable

c. Interpret the meaning of the coefficients in the regression equation.

b0 = the predicted value of y when x1 and x2 both equal 0.

b1 = the change in y when x1 increases by 1 unit holding x2 constant.

b2 = the predicted difference in y between the two possible outcomes of the categorical variable holding x1 constant.

7 0
3 years ago
Mr. Smith is adding food coloring to water to create his own paint colors. He has 5 1/3 cups of water. to create a color, he nee
serious [3.7K]

8 Colors

If you make it an improper fraction it becomes 16/3 and 2/3, so now you can do 16/2, giving you 8 colors

6 0
3 years ago
Read 2 more answers
4+8= 2 x (6-3)<br> Can somebody help me ASAP
kupik [55]

Answer: 12≠6

False

Step-by-step explanation:

8 0
3 years ago
Graph the function.<br> y = -6x2 - 12x -1
artcher [175]
Answer:

Step by step explanation
7 0
2 years ago
Need help with these 2 questions
MArishka [77]

Answer: 1. x= -12           2. x= 12

Step-by-step explanation:

1. 5(+3)=−45

5x+15−15=−45−15

5x= -60

5x/5 = -60/5

x = -60/5

x= -12

2. 1x/2−4=2

x/2 -4=22−4+4=2+4

/2=6

2⋅2=2⋅6

x=2⋅6

x= 12

8 0
3 years ago
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