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slamgirl [31]
3 years ago
7

A least squares regression line: a. may be used to predict a value of y if the corresponding x value is given b. implies a cause

-effect relationship between x and y c. can only be determined if a good linear relationship exists between x and y d. None of these alternatives is correct.
Mathematics
1 answer:
seraphim [82]3 years ago
3 0

Answer:

a) May be used to predict a value of y if the corresponding x value is given

Step-by-step explanation:

In regression analysis, the vertical distance from the regression line to the data points can be minimized using the least square regression line.

Given the example of a least square regression equation:

y = ax + b

Where

a = slope

b = Y-intercept

If the value of x is known, the value of y may be predicted.

Option A is correct.

A least squares regression line may be used to predict a value of y if the corresponding x value is given

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Which expressions represent a difference of squares?
andrew-mc [135]

Answer:

25 {x}^{2}  - 36\\ 1-16x^2\\4x^2 - 12x + 9

Step-by-step explanation:

25 {x}^{2}  - 36 \\  = ( {5x})^{2}  - ( {6})^{2}  \\

4 0
3 years ago
What is the remainder when 6x+12 is divided by 2x-8.​
bagirrra123 [75]

Answer:

4(3x-2)

Step-by-step explanation

6x+12/2x-8

6x+6x-8

12x-8

4(3x-2)

7 0
2 years ago
Read 2 more answers
The answer to a,b and c
GuDViN [60]

Answer:

16/45; 4/45; 1125

Step-by-step explanation:

Since you know that 4/9 and 1/5 are used, make them common denominators. So 4/9 would turn into 20/45 and 1/5 would be 9/45. It results in 29/45, but that is the amount spent, so you would subtract 45-29/45, resulting in 16/45. For B, you know that she spent 3/4 of the savings, so you know that 1/4 is not being spent. So use 1/4 multiplied by 16/45 from part A to get 4/45. For C, you know that 4/45 is $100, so I multiplied 45x100 to get 4500 and then divided by 4 to get 4500/4.

8 0
3 years ago
Mindy saves more than $12.70
stich3 [128]

Answer:

$63.00 is the closet answer.

Step-by-step explanation:

12.70 x 5

      12.7

×     5

------------------

       13  

       63.5

Therefore, 12.7×5=63.5.

$63.5

5 0
3 years ago
Okay so this is for my math homework that I wasn't able to do earlier.
WITCHER [35]

What is the question?????

4 0
3 years ago
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