Select the FALSE statement about the correlation coefficient (r).

a. The value of the correlation coefficient lies between-1 and 1.
b. The sign of the correlation coefficient tells us if the pair of variables is positively or negatively associated.
c. The correlation coefficient r = 0 shows that two variables are strongly correlated.
d. The correlation coefficient quantifies the strength of the linear relationship between two variables.

Answers

Answer 1

Answer:

C.

Step-by-step explanation:

Scatterplots with weak correlation coefficients are values near zero

Answer 2

The false statement about the correlation coefficient is r = 0 shows that two variables are strongly correlated.

What is Correlation?

A statistical metric known as correlation illustrates how closely two variables are connected and how they tend to move in tandem. When two variables are positively correlated, they move in the same direction, and when they are negatively correlated, they move in the opposite way. To determine the degree and direction of the association between two variables, a correlation coefficient is utilized.

A correlation coefficient of -1 indicates a perfect negative correlation, a correlation coefficient of 1 indicates a perfect positive correlation, and a correlation coefficient of 0 indicates no correlation between the two variables.

Given data ,

The FALSE statement is:

c. The correlation coefficient r = 0 shows that two variables are strongly correlated.

A correlation coefficient of 0 means that there is no linear relationship between the two variables. It does not indicate the strength of the relationship.

A value of r = 0 indicates that there is no association between the two variables, whereas a value of r = 1 or r = -1 indicates a perfect positive or negative association, respectively.

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Related Questions

Jordan has $20 to share among three people Jordan types 20÷3 into his calculator and gets 6.666666667 where should Jordan round

Answers

Answer: to the nearest tenth i believe, 6.8

Step-by-step explanation:

The round off should be ones place.

What is Rounding Off?

Rounding off means a number is made simpler by keeping its value intact but closer to the next number. It is done for whole numbers, and for decimals at various places of hundreds, tens, tenths, etc.

Given:

20÷3

The resulting value is 6.666666667.

So, divide the money it should be round off to ones place to get a whole number which can make it easy to divide.

Hence, the round off should be ones place = 7

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Solve for h. s=6πsh+6πs²
I got h=1/6π-s but it says the answer is correct but the format is not, ideas?

Answers

Answer:

Try h=(1-6πs)/6π

Step-by-step explanation:

That's the same answer in another format

Find the length of segment GH.
21
12
F

Answers

Answer:

GH = 9

Step-by-step explanation:

FH=FG+GH

21= 12+GH

GH = 21-12 =9

I hope I helped you^_^

Domain and Range. PLEASE HELP!!!!! Numbers 1 and 2 please.

Answers

Answer:

1) D: -8 < x ≤ 2, R: -4 ≤ y ≤ 11.

2) D: -8 ≤ x ≤ -3 U 2 ≤ x < ♾️,

R: -6 ≤ y ≤ -5 U -3 ≤ y < ♾️.

please solve the equation for y

Answers

Answer:

Step-by-step explanation:

A = [tex]\frac{x+y}{2}[/tex]

2A = x + y

y = 2A - x

Find the coordinates of the point P that lies along the directed line segment from A(-2,5) and B(2,-3) and partitions the segment in the ratio of 4 to 1.

A (1.6, -1.2)

B (1, 4.5)

C (1.2, -1.4 )

D (9, -2)

Part B

Find the coordinates of the point P that lies along the directed line segment from A(-3,-4) and B(5,0) and partitions the segment in the ratio of 2 to 3.
Group of answer choices

(-2.4, 0.2)

(0.2, -2.4)

(-0.2, 0.4)

(-0.4, 6)

Answers

Answer:

help

Step-by-step explanation:

Solve (x + 5)2 = 48.

Answers

Answer:

x = -5  ±4sqrt(3)

Step-by-step explanation:

(x + 5)^2 = 48

Take the square root of each side

sqrt((x + 5)^2) = ±sqrt(48)

x+5 = ±sqrt(16*3)

x+5 = ±4sqrt(3)

Subtract 5 from each side

x = -5  ±4sqrt(3)

There are 8 Pizza Huts in the
city, Altogether they sold 5,376
pizzas yesterday, If each Pizza
Hut sold the same number of
pizzas, how many pizzas did
each one sell?

Answers

Answer:

672

Step-by-step explanation:

Given: 8 pizza hut's sold a total of 5,376 pizzas

Each pizza hut sold the same amount of pizzas

So number of pizzas sold from 1 pizza hut = 5376/8 = 672

2+3+4+6+6+5+8+9+4+3+5+8+9=

Answers

Answer:

72

Step-by-step explanation:

5,9,15,21,26,34,43,47,50,55,63,72

Answer: it's 72

ok!! hope it helps

The tree diagram represents an
experiment consisting of two trials.

(PICTURE INCLUDED FOR BETTER CONTEXT) urgent pls help

Answers

Answer:

answer is in photo.

Green one is main answer and blue one is formula

What are the coordinates of the image of polygon KLMN after a reflection across the y-axis?



Answers

The answer is mostly is B.

if(2x-y)=4 then (6x-3y)=?​

Answers

Answer:

12

Step-by-step explanation:

(2x-y)=4

Multiply the first equation by 3

3*(2x-y)=3*4

6x -3y = 12

When the product of x5 × x3 × x6 is expressed as a monomial, we get​

Answers

Answer:

[tex]x^{14}[/tex]

Step-by-step explanation:

[tex]x^{5}[/tex] × [tex]x^{3}[/tex] × [tex]x^{6}[/tex]

[tex]x^{5+3+6}[/tex]

[tex]x^{14}[/tex]

Find the length of AB

Answers

Answer:

52

Step-by-step explanation:

AB is the hypotenuse of the right triangle

sin34 = opp/hyp = 29/hyp

hyp = 29/sin34 = 51.860457849...

Answer:

[tex]let \: |ab| \: be \: x \\ \\ \frac{ \sin(90) }{x} = \frac{ \sin(34) }{29} \\ x \sin(34) = 29 \sin(90) \\ x = \frac{29 \sin(90) }{ \sin(34) } \\ x = 51.86(2.d.p) \\ |ab| = 51.86[/tex]

The ratio of red beads to blue beads on a necklace is 4:7. What fraction of the beads are blue?

Answers

Answer:

fraction of blue beads = 7/(4+7)

= 7/11

Answer:

3:5

Step-by-step explanation:

find a common numeral

Matrix addition is shown here.
-5 -4 t
W -6 -2
3 -2 3
+
-5 z 11
=
21
-4 2-1
-9 7 s
Enter the value of s, t, w and z

Answers

Answer:

I haven't learned matrix sorry

why do you add them instead of multiplying them

Answers

Answer:

huh

Step-by-step explanation:

Please Help Me Do This I cant understand it no matter how hard I try. (Problem in the image)

Answers

Answer:

7.3

Step-by-step explanation:

The length of AB is found using the distance formula

We need to know the coordinates of A and B

A = (-5,-4) and B = (-3,3)

The distance is

d = sqrt ( (y2-y1)^2 + (x2-x1)^2)

   = sqrt( (3 - -4)^2 +(-3 - -5)^2)

   = sqrt( (3+4)^2 +(-3+5)^2)

   = sqrt(7^2+2^2)

   = sqrt(49+4)

  = sqrt(53)

  =7.280109889

To the nearest hundredth

 =7.3

INSTRUCTIONS: This is a numerical series. Find the missing item

10.0.18 0.36 0.72|?|2.88

A. 0.9

B. 1.26

C. 1.44

D. 1.62

Answers

Answer: C. 1.44

Step-by-step explanation:

Each number gets multiplied by 2, so it's an exponential series in a way.

You must multiply .72 by 2 to get 1.44.

The correct answer: C. 1.44

Please help me I don’t understand how to do it. If you can please use a data table to explain how to do it.

Answers

Answer:

The 70% mixture makes up 0.7 liters of the solution whereas the 60% mixture makes up 2.8 liters of the solution.

Step-by-step explanation:

Let us have x liters of the .7 mixture and y liters of the .6 mixture.

We want total liters to be 3.5 which means we need x+y=3.5 . I don't like the decimal in the equation so I'm going to multiply both sides by 10: 10x+10y=35

We also need the .7x+.6y=.62(3.5) . I hate the decimal business going on in this question so I'm going to multiply by 1000 which gives 700x+600y=62(35) .

So we have the system

700x+600y=62(35)

10x+10y=35

I'm going to setup this up for linear combination/elimination.

Multiply bottom equation by 60.

700x+600y=62(35)

600x+600y=60(35)

Subtract equations (bottom from top):

(700-600)x+(600-600)y=35(62-60)

Simplify:

100x+0y=35(2)

100x=70

Divide both sides by 100:

x=70/100

x=7/10

Going back to x+y=3.5 along with x=7/10 or .7 liters to find y.

y=3.5-x with x=.7

y=3.5-0.7

y=2.8

The 70% mixture makes up 0.7 liters of the solution whereas the 60% mixture makes up 2.8 liters of the solution.

Pic added.

Another way to do problem:

.7x+.6(3.5-x)=.62(3.5)

Multiply and distribute:

.7x+2.1-.6x=2.17

Combine like terms on left:

.1x+2.1=2.17

Subtract 2.1 on both sides:

.1x=.07

Multiply both sides by 10:

x=0.7 liters

Now the other acid solution is 3.5-0.7 which is 2.8 litera.

what is the approxiamate solution to this equation 4lnx-8=12

Answers

Answer:

143.5

Step-by-step explanation:

4lnx=20

lnx=5

lnx= logeX

logeX=5

x=e^5

that is approximately equal to 2.7^5= 143.5

Answer:

x=148.4

Step-by-step explanation:

Julie has a dog that just had a litter of puppies. She has been observing the puppies for 3 weeks. Her teacher assigned homework that required her to create a scientific experiment. Because she likes the puppies so much she decided to make her experiment about them. Julie wrote a question that she could investigate when she was doing the experiment. Which is an acceptable hypothesis for the experiment?

Answers

Answer:

Step-by-step explanation:

in a certain country, 40% of registered voters are reublicans, 45% are democrats, and 15% are indepdents. what is the probability that a randomly selected voter opposes the bill

Answers

15 percent is correct

The coordinates of point T are (0,5). The midpoint of ST is (5,-2). Find the coordinates of point S.​

Answers

Answer:

(10, -9)

Step-by-step explanation:

Xs = 5 -(0-5) = 5+5 = 10

Ys = -2 -(5-(-2)) = -2 - 7 = -9

so, the coordinates of point S => (10, -9)

Answer:

S(10, -9)

Step-by-step explanation:

Use midpoint formula and assume S(x, y):

(0 + x)/2 = 5 ⇒ x / 2 = 5 ⇒ x = 10(5 + y)/2 = -2 ⇒ 5 + y = -4 ⇒ y = -4 - 5 ⇒ y = -9

Please help me with this math question, try and explain it too if possible so I can understand.

Answers

Answer:

UW = 67

Step-by-step explanation:

In order to find UW, we need to add UV and VW because them together makes the entire line, also known in this problem as UW. This is our equation:

UV + UV = UW

This is the equation if you plug the numbers:

19 + 4x - 20 = 6x - 35

Combine like terms to make it easier to do the math:

4x - 1 = 6x - 35

Then do the math:

(4x - 4x) -1 = (6x - 4x) - 35

-1 = 2x - 35

(-1 + 35) = 2x (- 35 + 35)

34 = 2x

34/2 = 2x/2

x = 17

Then you plug in x for the UW expression:

6x - 35

6(17) - 35

102 - 35

67

UW = 67

Which of the following is an example of a complex number that is not in the set of real numbers?
A) -7
B)
[tex]2 + \sqrt{3} [/tex]
C) 4+9i
D)
[tex]\pi[/tex]

Answers

Answer:

C

Step-by-step explanation:

By convention, it is C.

B is irrational but still real

D is irrational but still real

A is an integer which is real.

Answer: 4 + 9i

On edge2020.

What is the value of 6 (2b-4) When b=5

Answers

Answer:

36

Step-by-step explanation:

Replace the 2b with 10 and then do the parenthesis, so 10-4=6

now multiply it with the 6 outside the parenthesis and you get 36

Hi! I'm happy to help!

First of all, we need to substitute b into the expression.

6(2b-4)

6((2×5)-4)

Now we use the order of operations, or PEMDAS (Parenthesis, Exponents, Multiplication or Division, and Addition or Subtraction) to finish simplifying.

We see that 2×5 is inside two sets of parenthesis, so we solve that first

6((2×5)-4)

6((10)-4)

We cam remove the extra set of parenthesis because there isn't an expression inside of it any more.

6(10-4)

Now, we look inside of the parenthesis again and we see 10-4

6(10-4)

6(6)

The six next to the parenthesis has no sign next to it, which means to multiply.

6×(6)

Now we can remove the parenthesis.

6×6

Now, we just simply multiply.

6×6

36

To sum it up: The value of 6 (2b-4) When b=5 is 36

I hope this was helpful, keep learning! :D

Choose the most convenient method to graph the line y = –3x + 4.

Answers

Answer:

Step-by-step explanation:

10. Simplify: 6/√3

please help, show work

Answers

Answer: [tex]2\sqrt{3}[/tex]

Step-by-step explanation:

First, start by expanding the expression to this

[tex]\frac{6}{\sqrt{3}} * \frac{\sqrt{3} }{\sqrt{3} }[/tex]

Then multiply the fractions by numerators and denominators (separately)

[tex]\frac{6*\sqrt{3} }{\sqrt{3}*\sqrt{3} }[/tex]

It results in this, the radical 3 * radical 3 get rid of the square root and result in 3

[tex]\frac{6\sqrt{3} }{3}[/tex]

Reduce the fraction by dividing the 6 by 3 so your solution is

[tex]2\sqrt{3}[/tex]

A. 5x-2+x=x-4 B. 5x+x=x-4

Answers

B. -4/6

Step-by-step explanation:

5x+x=-4

6x=-4

x=-4/6

Answer:

x= -2/5 or -0.4 x= -4/5 or -0.8

Step-by-step explanation:

If you are solving for x then you should get something like this

A 5x-2+x=x- 4 B. 5x+x=x-4

6x-2=-4. 6x=x-4

6x-2-x=-4. 6x-x=-4

5x-2+2=-4+2. 5x=-4

5x/5=-2/5. 5x/5=-4/5

x=-2/5. x=-4/5

I hope this helped you out!

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