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salantis [7]
3 years ago
7

Multiple regression can help eliminate internal validity problems by ___________ potential third variables. It also sets a _____

________ variable that acts as the independent variable, or the variable that will influence another variable; and a ___________ variable that acts as a dependent variable, or the variable that is hypothesized to be affected by another variable. Effect sizes in multiple-regression analyses are represented by ___________, which is a standardized effect size, and ____________, which is an unstandardized effect size.
Mathematics
1 answer:
julia-pushkina [17]3 years ago
8 0

Answer:

controlling for

predictor

criterion

beta

b

Step-by-step explanation:

Multiple regression can help eliminate internal validity problems by controlling for potential third variables. It also sets a predictor variable that acts as the independent variable, or the variable that will influence another variable; and a criterion variable that acts as a dependent variable, or the variable that is hypothesized to be affected by another variable. Effect size in multiple-regression analyses are represented by beta, which is a standardized effect size, and b which is an unstandardized effect size

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The probability that Chloe acts hungry at 7pm given that she has already eaten dinner is 0.5. The probability that Chloe acts hu
kolezko [41]

Answer:

a) P(  Y^{C} | X ) = 0.180

b) P(Y | X^{C}  ) = 0.998

Step-by-step explanation:

Let

P(X) - Probability that he acts hungry

P(Y) - Probability that he had ate dinner,

Given,

P(X | Y) = 0.5

P(X | Y^{C}  ) = 0.99

P(Y) = 0.9

a.)

P(  Y^{C} | X ) =  \frac{P( X | Y^{C} ). P(Y^{C} )   }{P( X | Y^{C} ). P(Y^{C} ) + P( X | Y ) . P (Y) }

                  = \frac{(0.99)(0.1)}{(0.99)(0.1) + (0.5)(0.9)} = \frac{0.099}{0.549} = 0.180

⇒P(  Y^{C} | X ) = 0.180

b.)

P(Y | X^{C}  ) = \frac{(1 - P(X | Y ) ) . P(Y)}{P( X^{C} )  } =  \frac{(1 - P(X | Y ) ) . P(Y)}{ 1 - P( X )  }

                 = \frac{(1 - 0.5)(0.9)}{1 - [(0.99)(0.1) + (0.5)(0.9) ]} = \frac{(0.5)(0.9)}{1 - [(0.099) + (0.45) ]} = \frac{0.45}{1 - [0.540]} = \frac{0.45}{0.451} = 0.998

⇒P(Y | X^{C}  ) = 0.998

3 0
3 years ago
Elton is a candle maker. Each 15 centimeter long candle he makes burns evenly for six hours. If Elton makes a 45 long centimeter
Lina20 [59]

Answer:

18 hours

Step-by-step explanation:

15 centimeters -> 6 hours

Multiply by 3

45 centimeters -> 18 hours

4 0
3 years ago
Read 2 more answers
(6x^2+40x+29)/(x+6)  what is the Quotient and Remainder
Lunna [17]
Are you sure  about the arrow up or down..
8 0
3 years ago
A bag contains 7 red marbles, 8 blue marbles and 3 green marbles. If three marbles are drawn out of the bag, what is the exact p
ddd [48]
We know that
P= no or frequency of desired object / total number of objects
So,
T= 7+8+3=18
p=8/15
5 0
3 years ago
I need to solve this system of equations, how do I do that?<br> 3x-4y=20<br> y=3/4x-5
Paha777 [63]

Answer:

Is is Infinitely many solutions so 0=0

<em><u>Step-by-step explanation:</u></em>

<h3>First we have to rearrange/simplify the equations:</h3>

Equation 1: 4y - 3x = -20

Equation (2):  y - 3x/4  = -5

<h3>Then you remove the fractions by multiplication: </h3>

Multiply equation (2) by 4

<h3>The Equations now look like this: </h3>

Equation 1: 4y - 3x = -20

Equation (2): 4y - 3x = -20

<h3>Solve for y on Equation (2):</h3>

y = <u><em>3x/4 - 5</em></u>

<h3>Then plug in this for the y in Equation 1 and then solve:</h3>

4•(<u><em>3x/4-5</em></u>) - 3x = -20

Therefore the answer leads to:

Infinitely many solutions, 0=0

Hope this helped :')

4 0
3 years ago
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