can someone help me with this? it’s linear regression and i forgot how to do it

Answers

Answer 1

I'll do problem 1 to get you started. The completed filled out table is shown below in the attached image.

We have x as the input and y as the output. The observed value is the second column, and this is the actual y value we're aiming for. The predicted value is an estimation based on what the linear regression line says. The residual is the error or gap between the observed and predicted.

With that in mind, let's fill out the table. In the first row, we have x = 5 pair up with y = 3. The predicted y value is y = 0.5x = 0.5*5 = 2.5, meaning we'll write "2.5" without quotes in the first blank space of that first row. The residual is

e = error or residual

e = (observed y value) - (predicted y value)

e = (3) - (2.5)

e = 0.5

A positive residual means that the observed y value is larger than the predicted one. The predicted y value is an under-estimate. We'll write "0.5" without quotes underneath "residual" in the first row.

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

We'll repeat the same steps for row 2

This time we have x = 10 lead to a predicted y value of y = 0.5*x = 0.5*10 = 5

The residual is

e = (observed) - (predicted) = (4) - (5) = -1

The negative residual tells us the observed value is smaller than the predicted one. The predicted value is an over-estimate.

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

For row 3, we have the input x = 15 lead to a predicted y value of y = 7.5 since y = 0.5*x = 0.5*15 = 7.5

The residual is therefore: e = (observed y) - (predicted y) = (9) - (7.5) = 1.5

The nice thing about how this table is set up, is that the observed y values are listed first, then the predicted y values next. This may help you remember how the order of subtraction will go.

The steps for rows 4 through 6 are the same as mentioned earlier, so there's nothing new here.

The completed table for problem 1 is shown below in the attached image.

Related Questions

2) A block of cheese weighs 0.6 kg. The block is cut into smaller pieces. Each piece weighs 0.05 kg. How many pieces are there? (Show the division equation to solve for this word problem before showing multiplication to solve.)

Answers

Answer:

0.6/0.05

(0.6 x 100) / (0.05 x 100)

= 60/5 = 12

Step-by-step explanation:

number of pieces = total weight of the cheese / weight of each piece

0.6 / 0.05

to divide easily, convert the decimals to whole number by multiply both the denominator and numerator by 100

(0.6 x 100) / (0.05 x 100)

= 60/5 = 12

Pls help with thissss

Answers

10.3 if you divide 43 and 11 you round and get 10.3

[tex] \frac{1 - \cos {}^{4} ( \beta ) }{ \sin {}^{4} ( { \beta }^{} ) } = 1 + 2 \cot {}^{2} ( \beta ) [/tex]
Please Prove This Problem By Doing in LHS side. I try my best but i couldn't solve this. so please solve it.

Answers

Answer:

Step-by-step explanation:

Which point is at 1 on the number line?

Answers

Answer:

Step-by-step explanation:

The answer for this question is C because 5/6 + 1/6 = 6/6

Me ajudemmm é pra hoje!!! Escreva como produto entre um número natural e uma potência de base 10. a) 300 b)4.000 c)50 000 d)700.000

Answers

Responder:

3 * 10²

4 * 10³

5 * 10⁴

7 * 10 ^ 5

Explicação passo a passo:

Expressando o seguinte como um produto de um número natural e uma potência base de 10.

Lembrar :

10 = 10¹

100 = 10 * 10 = 10²

1000 = 10 * 10 * 10 = 10³

Portanto,

300 = 3 * 100 = 3 * (10 * 10) = 3 * 10²

4000 = 4 * 1000 = 4 * (10 * 10 * 10) = 4 * 10³

50000 = 5 * 10000 = 5 * (10 * 10 * 10 * 10) = 5 * 10⁴

700000 = 7 * 100000 = 7 * (10 * 10 * 10 * 10 * 10) = 7 * 10 ^ 5

help me out? thank you so much whoever does :))

Answers

Answer:

[tex]86[/tex]

Step-by-step explanation:

The remaining part forms 360. so

[tex]233 + 41 + x = 360[/tex]

[tex]274 + x = 360[/tex]

[tex]x = 86[/tex]

Answer:

if you’re looking for b,

B = 86

sorry if wrong

Answer the following riddle a water truck carries a full 12 L container of water. He needs to deliver exactly 6 L to a costumer who only has an 8 L and 5 L containers . Without wasting any water or using any other containers,jugs, etc.... how is this possible ?

Answers

It’s possible because he carries 12 L of water and only needs to deliver 6 L, so he can put it in the 8L container.

if kellley wanted to redistribute the liquid equally, how much liquid would each bottle have?

Answers

Answer:

we dont know how much liquid it is

Is this correct? Answer if you know the answer and correct me if I am wrong.

Answers

Answer: Is correct trust me.

Step-by-step explanation:

Aye hello THIS IS FOR 30 POINT AND BRAINLIEST .

Help me on this question please

Possible: impossible:: ______ is to uncertain

Pls help me :c

Answers

If possible is to impossible then certain is to uncertain..

Answer:

its easy answer is certain

Find The volume of a cilinder

Answers

Answer:

Step-by-step explanation:

calculated it with scientific calculator

Devon’s tennis coach says that 72% of Devon’s serves are good serves. Devon thinks he has a higher proportion of good serves. To test this, 50 of his serves are randomly selected and 42 of them are good. To determine if these data provide convincing evidence that the proportion of Devon’s serves that are good is greater than 72%, 100 trials of a simulation are conducted. Devon’s hypotheses are: H0: p = 72% and Ha: p > 72%, where p = the true proportion of Devon’s serves that are good. Based on the results of the simulation, the estimated P-value is 0.06. Using = 0.10, what conclusion should Devon reach?

Answers

Answer:

Step-by-step explanation:

right on edge, the one talking abt: devon SHOULD FAIL TO REJECT....... more than 72%

A spinner is 1/6 red, 1/12 blue, 1/2 yellow and 1/4 green, what is the probability of spinning red or yellow?

Answers

Answer:

2/24

Step-by-step explanation:

This is because there are chance of getting the other colors.

max finds the product of 3/7 x 16. Which statement is true

Answers

It equals 48/7 or 6 6/7

The funnel is filled with oil. How many quarts of oil are in the funnel?   3 1 qt 58 in.  Round your answer to the nearest tenth.

Answers

Answer:

There is 2.887 quarts of oil in the funnel

Step-by-step explanation:

Complete question

A funnel is in the shape of a cone with a radius of 4 inches and a height of

10 inches. The funnel is filled with oil. How many quarts of oil are in the funnel?

Solution

As we know, volume of the cone is given by

[tex]V = \frac{1}{3} \pi r^2 h[/tex]

Here,

V = volume of the cone

r is the radius of the base of the cone

h is the height of the cone

Substituting the given values in above equation, we get -

[tex]V = \frac{1}{3} *3.14*4*4*10\\V = 167.467[/tex] Cubic inch

As given

1 quarts = 58 cubic inch

Total number of quarts of oil

[tex]\frac{167.467}{58} \\2.887[/tex]

There is 2.887 quarts of oil in the funnel

Seraphina picked 120 strawberries in six hours. At this rate, how many strawberries did Seraphina pick in 4 hours?

Answers

Answer:

80 Strawberries

Step-by-step explanation:

If she picked 120 strawberries in 6 hours

Then in 1hour she picked 120/6 = 20 strawberries

Then in 4 hours she picked 20×4 = 80 strawberries

What is 1-cos(6x)=___

Answers

Answer:

2sin^2(3x)

Step-by-step explanation:

The given expression is equivalent to [tex]2\sin^{2}{3x}[/tex].

What is trigonometry identity?

When trigonometric functions are used in an expression or equation, trigonometric Identities come in handy.

One of the trigonometry identity is [tex]\cos2x=2\cos^{2} x-1[/tex].

What is the simplified expression for given expression?

In the given expression [tex]\cos6x[/tex] can be break as [tex]\cos(2\cdot3x)[/tex].

Now use the identity [tex]\cos2x=2\cos^{2} x-1[/tex] in the given expression.

[tex]1-\cos6x=1-2\cos^{2}{3x}+1[/tex]

[tex]=2(1-\cos^{2}{3x})[/tex]

Now use the identity [tex]1-\cos^{2}x=\sin^{2}x[/tex].

[tex]1-\cos6x=2\sin^{2}{3x}[/tex].

Therefore, the given expression is equivalent to [tex]2\sin^{2}{3x}[/tex].

Learn more:https://brainly.com/question/2386398

#SPJ2

ill choose brainliest if bestt

Answers

Answer:

A rectangle.

Step-by-step explanation:

The shape of the data distribution is a rectangle.

Expand 4(20 + 5)
Please helppppp

Answers

Answer:

80 + 20

Step-by-step explanation:

4(20 + 5)

4×20 + 4×5

80 + 20

Classify the angle. I need this urgently please! Thank you!

Answers

The following is a right angle

If this helped you a Brainliest would be much appreciated!

Answer:

it is a right angle which is 90 degrees

2x+7<13 please help

Answers

Answer:

x<3

Step-by-step explanation:

let us solve this inequality step-by-step

2x+7<13

step 1: subtract 7 from both sides

2x+7−7<13−7

2x<6

step 2: divide both sides by 2

2x/2<6/2

step 3: simplify

x<3

good luck :)

i hope this helps

brainliest would be highly appreciated

have a nice day!

A new truck sells for $29,000 and depreciates 12% each year. Find the value of the truck after 10 years.

Answers

Answer:

according to the question value got less 12% each year

first of all the 12% of 29000$ = 29000÷100×12= 3480 $

in one year truck value deprecates 3480$

in 10 years it will 3480$×10 =34800$

now truck cost will be = 29000-34800$= -5000$

What is the root when talking about a quadratic equation

Answers

The root is the x intercepts or the zeros of the problem

If I were to graph

(x-5)(x+4)=0

We need a number for x which makes this equation 0

The numbers are 5 or -4

These are the x intercepts of the parabola or roots

Answer:

The roots of a function are the x-intercepts. By definition, the y-coordinate of points lying on the x-axis is zero. Therefore, to find the roots of a quadratic function, we set f (x) = 0, and solve the equation, ax2 + bx + c = 0.

Step-by-step explanation:

Alan drinks 0.55L of milk every day. How much milk does he drink in 5 days?
Write your answer in milliliters.

Answers

Answer:2750 milliliters

Step-by-step explanation:

because 0.55Lx5=2.75L.and if we put it into milliliters it would be 2750 milliliters

The length of the sides of a triangle is given. Determine
whether or not the triangle is right, acute, or obtuse.
6, 8, 10
a
Right
b Acute
a
Obtuse

Answers

Answer:

the triangle is right

Step-by-step explanation:

The Pythagorean theorem dictates that a^2 +b^2=c^2

6^2+8^2=10^2

36+64=100

100=100

Find the mean of the following numbers: 17, 17, 15, 16, 18

Answers

Answer:

Mean: 16.6 | Median: 17 | Mode: 17

Step-by-step explanation:

Of the fifth graders in oak elementary, 6/8 are in band. What fraction of the fifth graders are not in band?

Answers

Answer: 2/8
explanation: because 6/8 plus 2/8 = 8/8

Answer:

2/8 of the fifth graders are not in band

Step-by-step explanation:

To find how many fifth graders are not in band, subtract the # of fifth graders in band. Your difference is the amount of fifth graders that are not in band. To check your answer add 2/8 + 6/8 which should be equal to 8/8 or a whole ( 1 ).

Solve for X I need help please

Answers

Answer:

Step-by-step explanation:

Angles EBC and EDC are the same. and straight lines equal 180

so now to solve for x

[tex]180=134+10x+6\\180-134=134+10x+6-134\\46=10x+6\\46-6=10x+6-6\\40=10x\\40/10=10x/10\\4=x[/tex]

In Ty's math class, 20% of students earned an A on a test. If there were 30 students
in the class, how many got an A?

Please explain the best you can ! Thank you :)

Answers

So first you would take 20% of 30 which would be set of as .2 x 30 which equals 6. So your answer would be 6 students

Find the measure of <1

Answers

Answer:

89 degrees

Step-by-step explanation:

Answer:

Step-by-step explanation:

180 - 91 = 89

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