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eduard
1 year ago
13

Why do we square the residuals when using the least-squares line method to find the line of best fit?

Mathematics
1 answer:
Mekhanik [1.2K]1 year ago
4 0

We square the residuals when using the least-squares line method to find the line of best fit because we believe that huge negative residuals (i.e., points well below the line) are just as harmful as large positive residuals (i.e., points that are high above the line).

<h3>What do you mean by Residuals?</h3>

We treat both positive and negative disparities equally by squaring the residual values.  We cannot discover a single straight line that concurrently minimizes all residuals. The average (squared) residual value is instead minimized.

We might also take the absolute values of the residuals rather than squaring them. Positive disparities are viewed as just as harmful as negative ones under both strategies.

To know more about the Least-Squares Line method, visit:

brainly.com/question/14940432

#SPJ4

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If the perimeter of the adult pinball machine is 172 inches, what is the length, in inches of G’A’?
quester [9]
If you have ever seen a pinball machine, you would know that it is shaped like a rectangular box. Since a rectangle has two sets of equal parallel lines, then you would have to know the length and the width. Its perimeter is equal to the total length of all sides. Thus, the equation is 2L + 2W = 172 inches. However, since there is no other data other than the perimeter, I can't give a definite numerical answer. The only answer I could give is in variables. Thus, the length of the pinball machine is

2L = 172 - 2W

L= 86 - W
8 0
2 years ago
Work out the value of <img src="https://tex.z-dn.net/?f=2%5E%7B3%7D%20%2B%205%5E%7B2%7D" id="TexFormula1" title="2^{3} + 5^{2}"
Luden [163]

Answer:

33

Step-by-step explanation:

2³=8

5²=25

8+25=33.

so, 2³+5²=33

4 0
3 years ago
Read 2 more answers
Can someone help me with these 4 questions please :) .
butalik [34]

1.

60² + 30² = 4500²

Opposite corner = 67.08 ft.

//

2.

6² + 8² = 100²

The wire must be 10 ft.

//

3.

7² + 14² = 245²

The rope is 15.65 ft.

//

4.

180² + 300² = 122400²

He ran 349.85 ft.

//

I'm not too sure about question 3.

8 0
3 years ago
HELPPPPPP THIS IS DUE IN A LITTLE BIT!!!!!!!!!Roberto earns $7.00 an hour at a grocery store. If he works 20 hours each week, wh
vaieri [72.5K]

Answer:

C

Step-by-step explanation:

hope I'm right sorry if I'm not lol.

5 0
2 years ago
Read 2 more answers
Simplify and write the trig expression in terms of sin and cos
dsp73

We have:

cot(-x)cos(-x)+sin(-x)=-\frac{1}{f(x)}

Then we use trigonometric identities to change the negative sign of the trigonometric functions, so:

-sin(x)-cot(x)cos(x)=-\frac{1}{f(x)}

We clear f(x):

f(x)=\frac{1}{sin(x)+cot(x)cos(x)}=\frac{1}{sin(x)+\frac{cos(x)}{sin(x)}cos(x)}=\frac{1}{sin(x)+\frac{cos^2(x)}{sin(x)}}

we simply what we can:

f(x)=\frac{1}{\frac{sin^2(x)+cos^2(x)}{sin(x)}}=sin(x)

Thus, the correct answer is;

f(x)=sin(x)

6 0
1 year ago
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