Use a calculator to find the correlation coefficient of the data set. PLEASE HELP!

Use A Calculator To Find The Correlation Coefficient Of The Data Set. PLEASE HELP!

Answers

Answer 1

Answer:

The correlation coefficient of the data set is -0.901

Step-by-step explanation:

x           y            xx          xy          yy

1         20            1            20         400

3        14             9           42          196

5        10            25          50          100

9         6            81           54           36

15       4            225         60           16

[tex]\sum x = 1+3+5+9+15=33\\\sum y =20+14+10+6+4=54\\\sum x^2 =1+9+25+81+225=341\\\sum y^2=400+196+100+36+16=748\\\sum xy=20+42+50+54+60=226[/tex]

Formula :[tex]\frac{N \sum XY - (\sum X)(\sum Y)}{\sqrt{N\sum X^2 - (\sum X)^2}\sqrt{N \sumY^2 - (\sum Y)^2)}}[/tex]

[tex]= \frac{5 (226) - (33)(54)}{\sqrt{5(341)- (33)^2}\sqrt{5 (748) - (54)^2}}\\=-0.901[/tex]

So, Option D is true

Hence the correlation coefficient of the data set is -0.901


Related Questions

Work out the length of AB. Give your answer to 3 significant figures

Answers

Answer:

D = 9.80

Step-by-step explanation:

To find AB, we'll use the distance formula:

Distance Formula = [tex]\sqrt{(x2-x1)^2+(y2-y1)^2}[/tex]

D = [tex]\sqrt{(10-1)^2+(3-7)^2}[/tex]

D = [tex]\sqrt{(9)^2+(-4)^2}[/tex]

D = [tex]\sqrt{81+16}[/tex]

D = [tex]\sqrt{96}[/tex]

D = 9.80 (Upto 3 sfs)

Helppp!!!! please!!!

Answers

Answer:

...........................

A line is defined by the equation 2x + 4y = -8. Determine the equation of
another line that will creare a linear system with
(a) no solution
(b) many solucions
(c) one solution​

Answers

Answer:

so turn it into the other form:

2x+4y=-8

4y=-2x-8

y=-0.5-2

then:

a) y=-0.5x+44

b) y=-0.5x-2 (itself)

c) y=-55x-2 (they cut each other in (0,-2)

hwmp please- somebkdy kind kf struggling ​

Answers

Answer:

-5, 5

Step-by-step explanation:

Hope this helps

Can you please help me understand how to solve this

Answers

Answer:

Hope you understand this

Step-by-step explanation:

HAVE A GOOD DAY!

Answer:

m<ACD=113

Option B is the right option.

solution,

<A=2x-9

<B=4x+2

<ACD=5x+13

The exterior angle of a triangle is sum of two opposite interior angles.

m<A+m<B=m<5x+13

[tex]or \: 2x - 9 + 4x + 2 = 5x +13 \\ or \: 2x + 4x - 9 + 2 = 5x + 13 \\ or \: 6x - 7 = 5x + 13 \\ or \: 6x - 5x = 13 + 7 \\ x = 20[/tex]

Replacing value,

[tex]angle \: acd \\ = 5x + 13 \\ = 5 \times 20 + 13 \\ = 100 + 13 \\ = 113[/tex]

Hope this helps....

Good luck on your assignment..

What is the height of the prsim if there is 3 meters,2 meters, and the volume is 36 cublic meters

Answers

Answer: The height is 6 meters

Step-by-step explanation:

3 * 2 *h = 36   where h is the height

6h = 36

h = 6

Answer:

The answer is 6

Step-by-step explanation:

Because you would have to get 6h=36 alone so you would have to divide 6 by both sides. which gives you h=6

ILL MARK YOU BRAINLIEST :))))) if you apply the changes below to the linear parent function, f(x)=|x|, what is the equation of the new function Shift 4 units left Shift 2 units up

Answers

Answer:

f(x) = |x + 4| + 2.

Step-by-step explanation:

When you shift the function to the left, the x-value changes, so you put the change within the absolute value. Also, within the absolute value, when you shift things to the right, you minus, and when you shift to the left, you add.

When you shift the function up, the y-value changes, so you put the changes outside of the absolute value. Shifting up means adding and shifting down means subtracting.

Hope this helps!

In the number .75, which number is in the tens place?
5
OOOO
75
7

Answers

Answer:

7 is in the tens place because 5 holds the place value of ones in the number 75

Answer:

7

Step-by-step explanation:

number 7 is in the tens place because the order goes ten's..... hundreds........ thousands..... and so on

Which of the following represents a rotation of triangle XYZ, which has vertices (-4,7), Y(6,2), and Z (3,-8) about the origin by 90 degrees? HELP PLS options: A: X (-7,-4) Y(6,-2) Z(-8,3) B: X(7,-4) Y(-2,6) Z (3,-8) C: X (-7,-4) Y(-2,6) Z (8,3) D: X(7,-4) Y (-2,6) Z (-3,8)

Answers

Answer:

The best option is B: X' = (-7,-4), Y' = (-2,6), Z'=(8, 3).

Step-by-step explanation:

Each vertex can be represented as a vector with regard to origin.

[tex]\vec X = -4\cdot i + 7\cdot j[/tex], [tex]\vec Y = 6\cdot i + 2\cdot j[/tex] and [tex]\vec Z = 3\cdot i -8\cdot j[/tex].

The magnitudes and directions of each vector are, respectively:

X:

[tex]\|\vec X\| = \sqrt{(-4)^{2}+7^{2}}[/tex]

[tex]\|\vec X\| \approx 8.063[/tex]

[tex]\theta_{X} = \tan^{-1}\left(\frac{7}{-4} \right)[/tex]

[tex]\theta_{X} \approx 119.744^{\circ}[/tex]

Y:

[tex]\|\vec Y\| = \sqrt{6^{2}+2^{2}}[/tex]

[tex]\|\vec Y\| \approx 6.325[/tex]

[tex]\theta_{Y} = \tan^{-1}\left(\frac{2}{6} \right)[/tex]

[tex]\theta_{Y} \approx 18.435^{\circ}[/tex]

Z:

[tex]\|\vec Z\| = \sqrt{3^{2}+(-8)^{2}}[/tex]

[tex]\|\vec Z\| \approx 8.544[/tex]

[tex]\theta_{Z} = \tan^{-1}\left(\frac{-8}{3} \right)[/tex]

[tex]\theta_{Z} \approx 290.556^{\circ}[/tex]

Now, the rotation consist is changing the direction of each vector in [tex]\pm 90^{\circ}[/tex], which means the existence of two solutions. That is:

[tex]\vec p = r \cdot [\cos (\theta \pm 90^{\circ})\cdot i + \sin (\theta \pm 90^{\circ})\cdot j][/tex]

Where [tex]r[/tex] and [tex]\theta[/tex] are the magnitude and the original angle of the vector.

Solution I ([tex]+90^{\circ}[/tex])

[tex]\vec p_{X} = 8.063\cdot [\cos (119.744^{\circ}+90^{\circ})\cdot i + \sin (119.744^{\circ}+90^{\circ})\cdot j][/tex]

[tex]\vec p_{X} = -7\cdot i -4\cdot j[/tex]

[tex]\vec p_{Y} = 6.325\cdot [\cos(18.435^{\circ}+90^{\circ})\cdot i+\sin(18.435^{\circ}+90^{\circ})\cdot j][/tex]

[tex]\vec p_{Y} = -2\cdot i +6\cdot j[/tex]

[tex]\vec p_{Z} = 8.544\cdot [\cos(290^{\circ}+90^{\circ})\cdot i +\sin(290^{\circ}+90^{\circ})\cdot j][/tex]

[tex]\vec p_{Z} = 8.029\cdot i +2.922\cdot j[/tex]

Solution II ([tex]-90^{\circ}[/tex])

[tex]\vec p_{X} = 8.063\cdot [\cos (119.744^{\circ}-90^{\circ})\cdot i + \sin (119.744^{\circ}-90^{\circ})\cdot j][/tex]

[tex]\vec p_{X} = 7\cdot i +4\cdot j[/tex]

[tex]\vec p_{Y} = 6.325\cdot [\cos(18.435^{\circ}-90^{\circ})\cdot i+\sin(18.435^{\circ}-90^{\circ})\cdot j][/tex]

[tex]\vec p_{Y} = 2\cdot i -6\cdot j[/tex]

[tex]\vec p_{Z} = 8.544\cdot [\cos(290^{\circ}-90^{\circ})\cdot i +\sin(290^{\circ}-90^{\circ})\cdot j][/tex]

[tex]\vec p_{Z} = -8.029\cdot i -2.922\cdot j[/tex]

The rotated vertices are: i) X' = (-7,-4), Y' = (-2,6), Z'=(8.029, 2.922) or ii) X' = (7,4), Y' = (2,-6), Z' = (-8.029, -2.922). The best option is B: X' = (-7,-4), Y' = (-2,6), Z'=(8, 3).

A Christian needs to have answers to questions about his faith so that: answer: he may lose his faith, he will become confident in his faith, he may change his faith.

Answers

Answer:

become more confident in his faith

Answer:

he will become confident in his faith

Explanation:

the Bible is very open to interpretation and does not always have definite answers. if you are able to form your own ideas and interpretation of the Bible then you'll have a stronger connection to it which will make you more confident in your faith.

If weight is an explanatory variable and cost is the corresponding response variable which of these would be represented by the y-axis on a scatterplot A. Weight B. Neither weight nor cost C. Both weight and cost D. Cost

Answers

Answer:

D. Cost

Step-by-step explanation:

In a scatter diagram we have that the x axis corresponds to the explanatory variable or also called the independent variable, since it is the value that is entered in the equation and does not depend on another.

While the y-axis corresponds to the response variable or also called the dependent variable since it is the value of the result of the equation

In this case, the explanatory variable is weight, that is, on the x-axis the weight would go and the cost is the response variable and would go on the y-axis, therefore, the answer is D. Cost

A function is a relation where each input value is assigned to

Answers

Can you apply a question to this problem so we can answer for you

is 1.25 the same as 25%?

Answers

Answer:

No

Step-by-step explanation:

1.25 as a percentage is 125%.

25% as a decimal is 0.25.

The graph of a line passes through the two points (-2, 1) and (2, 1). What is the equation of the line written in general
form?
Oy - 1= 0
Ox-y+1 = 0
OX+ y - 1= 0​

Answers

Answer:

y - 1 = 0.

Step-by-step explanation:

First off, we need to find the slope between the two points. That would be (1 - 1) / (2 - -2) = 0 / 4 = 0.

So, we would have an equation y = mx + b, where m is the slope and b is the y-intercept. Since the slope is 0, we have y = 0x + b, or y = b.

If you examine the coordinates, y always equals 1. So, b = 1, and y = 1.

y = 1

y - 1 = 0.

Hope this helps!

The world record for the largest collection of bookmarks is 71 235 bookmarks. Find the closest benchmark for each: a) in thousands _______________ b) in hundreds _______________ c) in tens _______________

Answers

Answer:

A: 71,235,000

B: 71,235,00

C: 71,240

Step-by-step explanation: Round by thousands, hundreds and tens.

–3x + 1 + 10x = x + 4

Answers

Answer: x=2

Step-by-step explanation:

7x+1=x+4

7x=x+3

6x=3

x=2

hope it correct :D

PLEWSE HELPPP THESE 2 QUESTIONSSZ

Answers

Answer:

According to the information Baiden's ratio =3

Total ratio=1+3+4=8

Total goals scored=32

Baiden score =3/8 ×32

=3×4

=12

therefore Baiden scored 12 goals

26. tax = 10/100×800

100 goes into 800 8 times

=10×8

=$80

Final bill = $800-$80

= $720

Which statement is true regarding the graphed functions?
A. f(4) = g(4)
B. f(4) = g(-2)
C. f(2) = g(-2)
D. f(-2) = g(-2)

Answers

Answer:c. F(2)=g(-2)

Step-by-step explanation:

In a game the average score was 60 time score was 5/2 of the average what was Tim’s score?

Answers

Answer:

in my own reasoning not sure if I am correct

Step-by-step explanation:

first it said Tim score was 5/2 of the of the average score

and the average score is 60

so that will be 5/2 × 60 which is

= 150

Annie and Xenas each arrive at a party at a random time between 2:00 and 4:00. Each stays for 45 minutes and then leaves. What is the probability that Annie and Xenas see each other at the party?

Answers

Answer:

P(meet) = 55/64

P(meet) = 0.8594

P(meet) = 85.94%

Therefore, there is a 85.94% probability that Annie and Xenas see each other at the party.

Step-by-step explanation:

Let A denote Annie and X denotes Xenas.

The total time is 2 hours (2:00 to 4:00)

Both A and X stays for 45 minutes or 3/4 hours

The probability that A and X do not meet is given by

P(Not meet) = (3/4)/2 × (3/4)/2

P(Not meet) = 9/64

So the probability that A and X will meet is given by

P(meet) = 1 - P(Not meet)

P(meet) = 1 - 9/64

P(meet) = 55/64

P(meet) = 0.8594

P(meet) = 85.94%

Therefore, there is a 85.94% probability that Annie and Xenas see each other at the party.

question is in the pic

Answers

50x30x9x70jssjgsvebdghxhdbgd

Answer:

Step-by-step explanation:

(5 * 10³) * (9*10⁷) = 5*9 * 10³⁺⁷

                          = 45 * 10¹⁰

                          = 4.5 * 10¹¹

(7*10⁵)÷ (2*10²) =

                         [tex]\frac{7}{2}*10^{5-2}\\\\=3.5*10^{3}[/tex]

Hello! Someone please help ASAP

Answers

Answer:

A.

Step-by-step explanation:

Since g(x) is the graph of f(x) but vertically stretched, the only viable option is g(x) = 2x² because the rest of the equations are vertically shrunk.

Is this function linear or nonlinear y=1/2x^{2}
will give brainliest

Answers

Answer:

nonlinear

Step-by-step explanation:

The word 'linear' means something having to do with a line. On a Cartesian Plane, a linear characteristic is a feature wherein the graph is a straight line. The line can cross in any direction, but it's always an instant line. A non-linear function has a shape that isn't an immediate line

The graph is nonlinear because it is not a straight line.

please mark me brainliest!

Answer:

Nonlinear.

Step-by-step explanation:

Since x is being squared, the equation is actually a parabola. The power of x has to be 1 for the function to be a linear function, so this equation is nonlinear.

Hope this helps!

Dawn is going scuba diving. Which situation would be modeled by a positive number?

Answers

Answer:

on the dive boat deck

Step-by-step explanation:

Answer:

the above is right

Step-by-step explanation:

Meggy was solving the following equation: 3x + 5 = 64 She concluded that the value of x is [tex]x=19.6666...[/tex] Is she correct?

Answers

Answer:

Yes, she is correct.

Step-by-step explanation:

[tex]3x+5=64\\\\3x+5-5=64-5\\\\3x=59\\\\\frac{3x}{3}=\frac{59}{3}\\\\ \frac{59}{3}=19\frac{2}{3}\\\\19\frac{2}{3}=19.666...\\\\ \text{Therefore}:\\x=\boxed{19.666...}[/tex]

The digit of 6 is repeating.

Which expression is equivalent to the given expression?
(-4abc)
A-12a3bc
B-64a3883
C-64a3883
D-12a3883

Answers

Answer:

A

Step-by-step explanation:

If you see - 12a3bc, - 12a divided by 3 will give you - 4a then just put the rest beside them. So the answer will be A.

here is a sequence of numbers: 64,49,36,25,16. What is the name given to these numbers

Answers

Answer:

These are squares of numbers 8 to 4.

Step-by-step explanation:

The given sequence of numbers is given as:

64, 49, 36, 25, 16

First of all let us factorize each number:

[tex]64 = 8 \times 8\\49 = 7 \times 7\\36 = 6 \times 6\\25 = 5\times 5\\16 = 4\times 4\\[/tex]

We can see that every number is obtained by multiplying some other number by itself.

For example, 64 is obtained by multiplying 8 with itself i.e. 8 multiplied with 8.

49 is obtained by multiplying 7 with itself i.e. 7 multiplied with 7.

and so on.

So, each number is a square of some number.

The numbers are in decreasing order. (64 to 16)

i.e. we have square of numbers here.  

Square of 8, square of 7, square of 6, square of 5, square of 4,

Generalizing the terms:

[tex]a_n = (9-n)^2[/tex] where n is from 1 to 5

The name given to the sequence is:

Square of (9-n) where n is from 1 to 5.

OR

square of numbers, numbers from 8 to 4 in decreasing order.

The partial receipt below shows the money, in dollars, Ryan spent at an online clothing retailer.
PRODUCT
QTY
PRICE
TOTAL
Socks
3
2.00
6.00
V-Neck
2
8.00
16.00
Shorts
1
15.00
15.00
What does 8.00 mean in this situation?
Choose 1 answer:
Ryan bought 8.00 V-Necks,
The price of each V-Neck Ryan bought was 8.00 dollars.

Answers

Answer:

Option (B)

Step-by-step explanation:

Picture attached shows a table having 4 columns,

Column 1). Name of products

Column 2). Quantity of each item

Column 3). Unit price of each item.

Column 4). Total value of each item.

8.00 lies in the column (3) which represents the price of each V-neck Ryan bought.

Therefore, Option (B) will be the answer.

Answer:

B

Step-by-step explanation:

had this question also

Work out x. Give reasons for your answer.

Answers

Answer:

The measurement for x is 80°

Step-by-step explanation:

In the picture, we see two parallel lines cut by a transversal line. Since the lines are cut by a transversal, then there are a few things we should know that can help us find the value of x.

Corresponding angles are congruent. Angles that are right beside each other (such as ∠CBD and ∠CBA) are a linear pair. This means that they have a total measurement of 180° when added together.

Now that we know these things, we can use this information to find the measurement of ∠CBA. We do this by subtracting 100 from 180 because ∠CBA and ∠CBD are a linear pair. Once we know the measurement of this angle, then it will be much easier to find the value of x.

180 - 100 = 80

So, the measurement of ∠CBA is 80°. Now, ∠CBA and ∠x are corresponding angles so this means that they have the same measurements. If the measurement of ∠CBA is 80°, then the measurement of ∠x is also 80°

x = 80°

Please helppp meeeee!!!!!!

Answers

Answer:

18, 23

Step-by-step explanation:

a. We know that W = 5 and D = 3 so:

P = 3W + D = 3 * 5 + 3 = 18 points

b. We know that P = 50 and D = 14 and that we are solving for W so we get:

50 = 3W + 14

36 = 3W

W = 12 which means the losses are 35 - 12 = 23.

(a) Given:

number of wins = 5

and, number of draws = 3

To find :

Point of the team.

Solution:

P = 3*5 + 3

 = 18

Point of the team = 18

(b)  Given:

number of points = 50

and, number of draws = 14

To find :

Number of games lost by the team.

Solution:

50 = 3*win + 14

3*win = 36

win = 12

Number of games lost by the team = 35 -  12 =23

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