Mathematics College

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Which equation is the equation of the least squares regression line that most closely matches the data set?

Answers

Answer 1

Answer:

y = 3.5X - 6921.2

Step-by-step explanation:

Given the data :

X :

1990

1992

1994

1996

Y :

Using an online regression calculator ; the regression model obtained is : y = 3.5X - 6921.2

Where ; slope = 3.5 ; intercept = - 6921.2

Related Questions

Can someone help me with this ?

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use pythagora's theorem to solve it
c^2=a^2+b^2
x^2=(3/4)^2+1^2
x^2=25/16
x= 5/4 = 1 1/4 inch
therefore it is B

it is b
step by step

Select the correct answer from each drop-down menu

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first one: Exact Form:
- 2 √2-√3-√6-√2/4
Decimal Form:
0.70710678...

What is the exponential of 3 · 3 · 2 · 4 · 4 · 4 · 4 ?

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3^2 * 3 * 4^4 is the correct form
Your welcome ☺️

Find the distance between the two points in simplest radical form.
(3, – 9) and (-3,-1)

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Answer:

[tex]distance = \sqrt{ {( - 3 - 3)}^{2} + {( - 1 - ( - 9))}^{2} } \\ = \sqrt{36 + 64} \\ = \sqrt{100} \\ = 10 \: units[/tex]

Find the value of x. 2x - 5 > 7 *

Answers

Answer:

[tex]x>6[/tex]

Step-by-step explanation:

Answer:

x > 6

Step-by-step explanation:

-2,6,-18,54 find the 12th term

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Answer:

354294

Step-by-step explanation:

-2,6,-18,54,-162,486,-1458,4374,-13122,39366,-118098,354294

multiply each number by -3

From the top of an 95 meter cliff, Tim spots a hiker down below at an angle
of depression of 22 degrees. To the closest meter, how far is the hiker from
the base of the cliff?

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Step-by-step explanation:

jsvsbsbbssnbshsshvsvsv

plz plz plz plz help me plz it is due in 1 hour and no links plz

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Answer:

It is:

B.Divide the area of the triangle by the base and multiply the result by 2.

Carmen drives her car 4,629 miles Uma drives her car more miles than Carmen how many miles could on my drive her car

Answers

Answer:

4,962

Step-by-step explanation:

4962 I believe tell me if I’m wrong <3

Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correct symbol ( μ, rho, σ) for the indicated parameter. A psychologist claims that more than 5.8 percent of the population suffers from professional problems due to extreme shyness. Use p, the true percentage of the population that suffers from extreme shyness.
a) H0 : p = 5.8%
H1 : p < 5.8%
b) H0 : p = 5.8%
H1 : p ≥ 5.8%
c) H0 : p = 5.8%
H1 : p > 5.8%
d) H0 : p = 5.8%
H1 : p ≤ 5.8%

Answers

Answer:

c) H0 : p = 5.8%

H1 : p > 5.8%

Step-by-step explanation:

At the null hypothesis, we test that the percentage is equal to a certain value. At the alternate hypothesis, we have a test about this percentage, if it is more, less, or different from the tested value.

A psychologist claims that more than 5.8 percent of the population suffers from professional problems due to extreme shyness

At the null hypothesis, we test if the percentage is 5.8%

[tex]H_0: p = 5.8\%[/tex]

At the alternate hypothesis, we test if this percentage is more than 5.8%. So

[tex]H_a: p > 5.8\%[/tex]

This means that the correct answer is given by option c.

Answer:

c) H0 : p = 5.8%

H1 : p > 5.8%

Step-by-step explanation:

Hope this helps

Kind of easy giving alot points to anyone who knows

Answers

Answer:

5 hours

Step-by-step explanation:

Given
mZQPS is a straight angle
mZQPR = 72 – 4°
mZRPS = 9x - 40°
Find mZQPR:
P

Answers

9514 1404 393

Answer:

m∠QPR = 94°

Step-by-step explanation:

Given:

m∠QPS = 180°

m∠QPR = 7x -4°

m∠RPS = 9x -40°

Find:

m∠QPR

Solution:

m∠QPR + m∠QPR = 180°

(7x -4°) +(9x -40°) = 180°

16x = 224° . . . . . . . . . . . . . add 44°

x = 14° . . . . . . . . . . . . . divide by 16

m∠QPR = 7x -4° = 7(14°) -4°

m∠QPR = 94°

How many hours in a year?

Answers

There are 8,760 hours in a year. Because there are about 730 hours per month

Answer:

Here is your answer hope it helps u have a great day ahead....

De un saco de frutas que contiene 3 naranjas, 2 manzanas, y 3 plátanos, una muestra aleatoria de 2 piezas de se selecciona la fruta. Si X es el número de naranjas e Y es el número de manzanas en la muestra, encuentre
(a) la distribución de probabilidad conjunta de X y Y, muestre la tabla de distribución;

(b) Pruebe que la suma de columnas y renglones nos entregan las distribuciones marginales de X , Y

(c) Calcule P(Y = 0|X = 2)

(d) Demuestre que las variables aleatorias X ,Y no son estadísticamente independientes

Answers

Answer:

Step-by-step explanation:

i phone you have a great day but I don't think it will be a good pic of your face is it a good day today and tomorrow to drink seculari sec to

PLEASE HELP I DON'T KNOW

Answers

Answer:

radius

Step-by-step explanation:

Answer:

It is the radius

Step-by-step explanation:

Variable c is 9 less than variable w. Variable c is also 3 more than variable w. Which pair of equations best models the relationship between c and w? (5 points)

a
c = w + 9
c = w − 3

b
w = c + 9
w = c − 3

c
c = w − 9
c = w + 3

d
w = c − 9
w = 4c + 3

Answers

B is the right anwser

Evaluate m) (x) for x = -3.
=
I
m (-3) =

Answers

-3m ??? Your question is not well asked

Which two do i pick ? Evaporation changes gas / liquid water to ice (solid) / water vapor (gas).

Answers

Evaporation changes liquid water and even solid water (ice) to water vapor, which is a gas. This all part of the water cycle! Hope this helps!!

Answer:

Evaporation changes liquid water and even soled water (ice) to water vapor, which is a gas. This all part of the water cycle

Step-by-step explanation:

thank you

1) Which choice best represents the height of a box of cereal? A. 30 millimeters B. 30 centimeters C. 30 kilometers D. 30 meters

Answers

Answer:

30 centimeters

SHEEEEEEEEEEEEEEEEEEEESH

Joe drove 80 kilometers per hour for 4 hours. How far did he go?

Answers

Step-by-step explanation:

velocity = distance/time taken

distance=velocity ×time taken

distance=80×4

distance=320kilometers

he went 320kilometers

Write the function for the graph.
(1,12)
(0,3)
O A. f(x) = 3•(12)^x
O B. f(x) = 4•(3)^x
O C. f(x) = 3•(4)^x
D. f(x) = 4•(12)^x

Answers

Answer:

[tex]f(x) =3 * (4)^x[/tex]

Step-by-step explanation:

Given

[tex](x_1, y_1) = (1,12)[/tex]

[tex](x_2, y_2) = (0,3)[/tex]

Required

The function of the graph (exponential function)

An exponential function is represented as:

[tex]f(x) = ab^x[/tex]

For [tex](x_1, y_1) = (1,12)[/tex], we have:

[tex]12 = a * b^1[/tex]

[tex]12 = a * b[/tex]

[tex]12 = a b[/tex]

For [tex](x_2, y_2) = (0,3)[/tex]

[tex]3 = a * b^0[/tex]

[tex]3 = a * 1[/tex]

[tex]3 = a[/tex]

[tex]a = 3[/tex]

Substitute: [tex]a = 3[/tex] in [tex]12 = a b[/tex]

[tex]12 = 3 * b[/tex]

Divide both sides by 3

[tex]4 = b[/tex]

[tex]b =4[/tex]

So, we have:

[tex]f(x) = ab^x[/tex]

[tex]f(x) =3 * (4)^x[/tex]

PQRS is translated 3 units down. What are the coordinates of R' , the image point of R' after the translation
A.(1,0)
B.(1,3)
C.(4,0)
D.(4,-3)

Answers

Answer:

I think its D but I might be wrong

Step-by-step explanation:

please help with this

Answers

Answer:

5.5 or simply 6

Step-by-step explanation:

6 = 33

1 = x

6x = 33

x = 5.5 ~6

5.5 or 6
—————————————————————-

Jina's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Jina $4.35 per pound, and type B coffee costs $5.80 per pound. This month's blend used twice as many pounds of type B coffee as type A, for a total cost of $510.40. How many pounds of type A coffee were used?

Number of pounds of type A coffee:

Answers

9514 1404 393

Answer:

32 pounds

Step-by-step explanation:

Let 'a' represent the number of pounds of Type A coffee used. Then the number of pounds of Type B coffee in the mix is 2a, and the total cost of the mix is ...

4.35a +5.80(2a) = 510.40

15.95a = 510.40 . . . . collect terms

a = 32 . . . . . . . . . . . divide by 15.95

Number of pounds of type A coffee: 32.

Graduates A random sample of the average debt (in dollars) at graduation from 30 of the top 100 public colleges and universities is listed below. Is there sufficient evidence at a _ 0.01 to conclude that the population mean debt at graduation is less than $18,000? Assume s _ 2605
16,012 15,784 16,597 18,105 12,665 14,734
17,225 16,953 15,309 15,297 14,437 14,835
13,607 13,374 19,410 18,385 22,312 16,656
20,142 17,821 12,701 22,400 15,730 17,673
18,978 13,661 12,580 14,392 16,000 15,176
a. State the hypotheses and identify the claim.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results

Answers

Answer:

H0 : μ = 18000

H1 : μ < 18000 - - - > Claim

Test value = - 3.578

Critical value = ±2.58

There is significant evidence to accept the claim that mean debt at graduation is less than $18000

Step-by-step explanation:

H0 : μ = 18000

H1 : μ < 18000

From the data:

Sample size, n = 30

Sample mean, x = 16298.37

The test statistic :

(16298.37 - 18000) ÷ (2605/sqrt(30))

−1701.63 / 475.60575

= - 3.578

The critical value :

Using the standard normal table;

Critical value at α = 0.01

Critical value = ±2.58

Decison region :

|test statistic | > |Critical value | ; reject H0

|3.578| > |2.58| ; We reject H0 and conclude that Mean debt at graduation is less than $18000

Someone please help me!!

For the given equation, what is the step to clear the fractions and what is the result?
O Multiply both sides by 6 to get 4y - 1 = 21.
O Multiply both sides by 18 to get 12y - 3 = 7.
O Multiply both sides by 6 to get 2y - 1 = 7.

Multiply both sides by 12 to get 2y - 1 = 7

Answers

Answer:

The first choice

Step-by-step explanation:

Multiplyil by 6 to get 4y - 1 =21

please help. NO LINKS.

Answers

Answer:

the answer is A

y= 1.9x + 69

y=6x

An assistant receives a wage of $16.24 per hour this amount is 112% of last year's wage what is the dollar increase in the hourly wage over last year use proportion method

Answers

9514 1404 393

Answer:

$1.74

Step-by-step explanation:

The ratio of the increase to this year's wage is ...

12%/112% = x/$16.24

Multiplying by $16.24, we have ...

x = $16.24(12/112) = $1.74

The dollar amount of the wage increase is $1.74.

I need help on dis one

Answers

Answer:

B, C, and D

Step-by-step explanation:

ahhhhh uh you are looking for things less than that line so you would pretty much shade in the under side of the line and any point that is in that shaded region is the answer

help!!
using quadratic formula
round to the nearest hundred

Answers

Answer:

x=-7±√97/4

Step-by-step explanation:

-7±√97

______

The quadratic equation. (-b+/- sqrt((b^2)-4ac))/2a (plug in accordingly)

0.71 and -4.21

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NO LINKS Which equation is the equation of the least squares regression line that most closely matches the data set?

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Which equation is the equation of the least squares regression line that most closely matches the data set?