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Alja [10]
3 years ago
10

Answer true or false. If​ false, explain briefly. ​a) Some of the residuals from a least squares linear model will be positive a

nd some will be negative. ​b) Least squares means that some of the squares of the residuals are minimized. ​c) We write ModifyingAbove y with caret to denote the predicted values and y to denote the observed values.
Mathematics
1 answer:
Maru [420]3 years ago
4 0
False because the squares are minimized of the least values.
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An encyclopedia has eight volumes. In how many ways can the eight volumes be replaced on the shelf? Explain.
aev [14]
Imagine there are 8 spots on the shelf. Replace the volumes one by one. The first volume to be replaced could go in any one of the eight spots. The second volume to be replaced could then go in any one of the seven remaining spots. The third volume to be replaced could then go in any one of the six remaining spots. etc So the total number of ways the eight volumes could be replaced = 8! = 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 = 40,320
7 0
3 years ago
Help with this please
Lera25 [3.4K]

Answer:

C) 0 <\ x OR x />7

Step-by-step explanation:

The first arrow has a closed circle which indicates greater/less than or equal to. All the values shaded are to the left of 0. So, <em>x</em> is less than or equal to 0. The second arrow also has a closed circle. Since the shaded part of the arrow is to the right of 7, <em>x</em> is greater than or equal to 7.

6 0
3 years ago
Select all the lines points that are on the line through (0,5) and (2,8)
bazaltina [42]

Answer:

3x-2y-2=0

3x-2y+10=0

Step-by-step explanation:

let the slope of the line be 'm'

and also (x1,y1)=(0,5)

             (x2,y2)=(2,8)

we know the formula for finding slope m=\frac{Y2-Y1}{X2-X1}

m=\frac{8-5}{2-0} \\m=\frac{3}{2}

The equation of the line will be as,

(y-y1)=m(x-x1)\\(y-5)=\frac{3}{2}(x-0)\\ y-10=3x\\ 23x-2y+10=0\\(y-2)=\frac{3}{2}(x-2)\\ 2y-4=3x-6\\3x-2y-2=0

7 0
3 years ago
If x plus 4 equals 12 then x equals 8
Aleksandr [31]
Yes that would be correct
6 0
3 years ago
What is y=2x-5 and x+3y=27 graphed
alex41 [277]

Answer:

See attachment

Step-by-step explanation:

The first function is y=2x-5.

The slope is m=2 and the y-intercept is b=5.

The second equation is x+3y=27.

The slope intercept form is y=\frac{1}{3}x+9

The slope is m=\frac{1}{3} and y-intercept is b=9

The graph of these two functions is shown in the attachment.

5 0
4 years ago
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