A group of students would like to know how well the value of coins in a bag can be predicted based on their weight. They collected the following data.





Weight (grams) 32.7 -96.9- 93.8 65.4 65.4 79.7 69.3 112.1
Value $0.63 $3.22 $2.10 $2.17 $2.14 $2.03 $1.76 $3.19




For the bags of coins, what is the correlation coefficient, r , between "weight" and "value"? Use technology, and round your answer to the nearest hundredth.

A Group Of Students Would Like To Know How Well The Value Of Coins In A Bag Can Be Predicted Based On

Answers

Answer 1

Using a calculator, it is found that the correlation coefficient between weight and value is of -0.15.

Correlation coefficient:Has two inputs, which are the sets of values x and y.In this problem, the set x is composed by the weights.The set y is composed by the prices.

Inserting these values in a calculator, it is found that the correlation coefficient between weight and value is of -0.15.

You can learn more about correlation coefficient at https://brainly.com/question/25815006


Related Questions

The total cost C for p pounds of ham if each pound cost $3.55

Write a function rule using C and p as variables.

Answers

Answer:

If each pound costs $5.46, then

p

pounds can be multiplied to 5.46 to find the costs of different amounts of lithium.

Total cost: C

5.46

p

=

C

Step-by-step explanation:

The midpoint of EF is M(1. – 1). One endpoint is E (– 3,2). Find the coordinates of endpoint F

Answers

Step-by-step explanation:

fihdjshshsjsbshdhddjdhdndjdbdhdb jseheidbdhdhdbehdndndnsjdnsjdndndjsjdndhdh sorry

The coordinates of F(x,y) is (5,-4) with midpoint of EF is M(1,-1)

What is midpoint of line segment?

The midpoint divides the line segment into two equal parts. As the number line progresses, the leftmost numbers become smaller, and the rightmost numbers become larger. Adding, subtracting, and multiplying can also be done using a number line like for addition move towards right and for subtraction move towards left.

Here, the mid point of line EF is M with coordinates (1,-1) with coordinates  of E(-3,2) therefore, using mid point formula to find coordinates of F(x,y)

[tex]\begin{aligned}\frac{-3+x}{2}&=1\\x&=2+3\\&=5\end{aligned}[/tex]

and for y coordinates of F :

[tex]\begin{aligned}\frac{2+y}{2}&=-1\\y&=-2-2\\&=-4\end{aligned}[/tex]

Therefore, the coordinates of F(x,y) is (5,-4) with midpoint of EF is M(1,-1)

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what is the answer to 36 divided by 48

Answers

Answer:

0.75

Step-by-step explanation:

Answer: 36 = dividend

48 = divisor or if ur doing other way 0.75

Step-by-step explanation:

A scale measures weight to the nearest 0.5 pound. Which measurement
shows an appropriate level of precision for the scale?
A. 140 pounds
B. 140.5 pounds
C. 140.75 pounds
O D. 141 pounds

Answers

Answer:

i think B... don't take my word though im not 100% cause it seems way too obvious on what the answer is lol

The measurement shows an appropriate level of precision for the scale is 140.5 pounds.

What is a place value?

Place value, which is related to a digit's location in a number, is the amount that each digit is worth.

The scale measures weight to the nearest 0.5 pounds. This means that the scale can accurately measure weights that end in 0.5 or 0, and it rounds other weights to the nearest 0.5.

Among the given options, the weight that shows an appropriate level of precision for the scale is option B, 140.5 pounds.

This weight can be accurately measured by the scale and is reported to the nearest 0.5 pounds.

Option A, 140 pounds, may be rounded up or down depending on the actual weight and may not be an accurate measurement.

Option C, 140.75 pounds, is too precise for the scale to measure accurately to the nearest 0.5 pounds.

Option D, 141 pounds, is rounded up from 140.5 pounds and may not be an accurate measurement for the scale.

Therefore, 140.5 pounds.

To learn more about the place value;

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11.sınıf temel düzey matematik geometri :(

Answers

Step-by-step explanation:

öklid kurali var uygularsak:

(3 kök 5 ) ^(2)=X.(X+4)45= X(X+4) buradan X = 5 Cevap B seçeneği BAŞARILAR...

Whats 9+10
Im willing to give 25 Points. And dont say 19 CAUSE IT AINT THE ANSWER. LOL

Answers

Answer:

21

Step-by-step explanation:

PLZZ HURRY!!!


Triangle JKL is transformed to create triangle J'K'L'. The angles in both triangles are shown.

AngleJ = 90° AngleJ' = 90°

AngleK = 65° AngleK' = 65°

AngleL = 25° AngleL' = 25°

Which statement is true about this transformation?

It is a rigid transformation because the pre-image and image have the same corresponding angle measures.
It is not a rigid transformation because the corresponding side lengths are not equal.
It can be a rigid or a nonrigid transformation depending on whether the corresponding side lengths have the same measures.
It can be a rigid or a nonrigid transformation because a pair of corresponding angles measures 90°.

Answers

Answer:

It’s the third option

Step-by-step explanation:

They preserved the angles

Answer:

It can be a rigid or a nonrigid transformation depending on whether the corresponding side lengths have the same measures.

Step-by-step explanation:

edge 2020

find x and y multiple choice​

Answers

Answer:

x=30

y=4

Step-by-step explanation:

Since there is an equilateral triangle, those angles =60°, and all sides to that triangle are equal.

You can determine y by looking at the congruent lines on the second triangle. In this triangle, we see that two sides, one of which is a side to the equilateral triangle, are equal to 20. Because one of these sides is a side to the equilateral, we know that all sides of the equilateral triangle are equal to 20, so using simple algebra you can determine that y=4.

To solve for x is a little more difficult. In the equilateral triangle, we know that all angles =60°, therefore we can solve for two angles to use to solve for x. We can solve for the obtuse angle by subtracting 60 from 180=120. then we can solve for the next angle that is next to the equilateral triangle because these two make a right angle so 90-60=30. Now you add the angles you just solved for, subtract that sum from 180, and you get x.

120+30=150

180-150=30

x=30

BRAINLIEST

Which two expressions are equivalent for any value of y?
Group of answer choices

A. 3(3y + 3) and 6y + 6

B. 3(3y + 3) and 9y + 6

C. 9(y + 3) and 12 + 9y

D. 9(y + 3) and 27 + 9y

Answers

B and D because when solved they have the same beginning values

identify the center

Answers

2nd center is the answer

first question is Bitcoin is a virtual currency used to buy things online. An investment of $5125 in bitcoins grew 48 times. What is the total value of the investment?

And the second question is The cost of each projector in an office is $9841. Find the cost of 210 such projectors.
$
tell me the answer A S A P plz

Answers

[tex]\huge\mathbb\purple{AnSwEr}[/tex]

[tex]\huge❤\bold\red{Hello}❤[/tex]

Hey mate 1. $246,000 2. $20,66,610 is your Answer

[tex]My \: pleasure \: to \: help \: you \: anytime.[/tex]

[tex]Mark \: me \: as \: brainliest .[/tex]

[tex] \huge \mathscr \pink \star\underline {Follow \: me } \red \star[/tex]

.anybody actually knows the answer ​

Answers

Answer:

2.56

Step-by-step explanation:

14.7 - 1.9 = 12.8

12.8/5 (sides) =

n = 2.56

check:

2.56 * 5 = 12.8

12.8 + 1.9 = 14.7

Find the sum of (8a + 2b - 4)

Answers

Answer:

There is really no answer to this because this is the furtherest you can go to simplify this expression. I can help solve it if you give me more information, or you tell me what the value of a and b is so I can solve it.

Thanks!

You can factor this, so here is it factored:
2(4a+b-2)

Solve the equation for y
- 5x + 2y = 1

Answers

Answer:

14x+37=4x

Step-by-step explanation:

Simplify (4x – 6) + (5x + 1).

Answers

Answer:

4x-6+5x+1

9x-5

Step-by-step explanation:

Answer:

9x-5

Step-by-step explanation:

like terms are added together, in this case, x

j(h − 9) 3+ 2; use h = 9, and j = 8 -2-

Answers

dfccxxcccvvv
ggcccgirafffeee

So if a video that is 15:34 how long is it when 2 times speed

tip: times 15 min. buy 60 then divdie all of the sec. by 2

Answers

Answer:

7:47

Step-by-step explanation:

Here are two ways of solving this:

The video will be half the time of 15:34, so you need to divide the time 15:34 by 2.

Method 1)

Use the tip. The video is 15 minutes and 34 seconds long.

Convert minutes to seconds: 15 * 60 = 900

Add 34 seconds to the 15 minutes: 900 seconds + 34 seconds = 934 seconds

The video is 934 seconds long.

Divide the total seconds by 2: 934/2 = 467

467 seconds = 420 seconds + 47 seconds = 7 minutes and 47 seconds

Answer: 7:47

Method 2)

Divide the minutes by 2 and divide the seconds by 2.

15 minutes and 34 seconds.

Divide minutes by 2: 15/2 = 7.5

Divide seconds by 2: 34/2 = 17

Now we need to add 7.5 minutes and 34 seconds.

0.5 minutes is half a minute, so it's 30 seconds.

7.5 minutes + 17 seconds =

= 7 minutes + 0.5 minute + 17 seconds

= 7 minutes + 30 seconds + 17 seconds

= 7 minutes + 47 seconds

= 7:47

Answer: 7:47

please help!!!! very confused

Answers

Answer:

I think it is B

Step-by-step explanation:

Hope this helped have an amazing day!

Which boat was farther from the dock at the beginning and which traveled more quickly

Answers

Answer:

Nvm

Step-by-step explanation:

Johns boat was 30 miles away. It traveled 20 miles in 5 hours (50-30 = 20)

20/5 = 4

It traveled at 4 miles per hour.

The equation for Roberta’s boat multiplied 5 by x( number of hours) so this means her boat is traveling at 5 miles per hour.

Then 25 gets added at the end, this means her boat was 25 miles away at the beginning.

Johns boat was further away at the beginning and Robertas boat is traveling faster.

Solve for X, please help me.

Answers

Answer:

9+12=21

21+2=33

23+3=26

Step-by-step explanation:

the answer is 7

This question is about ratio tables
please show me how you got the answer because I'm confused​

Answers

Answer:

the answer is 36

Step-by-step explanation:

because the bottom is going up by 9 and the top is going up by ones

Answer:

36

Step-by-step explanation:

Just do your 9's time tables

8 t-shirts and a hat costs £42.00
3 t-shirts and a hat costs £17.00.
How much does a t-shirt cost?
How much does a hat cost

Answers

Answer:

a T-shirt costs £5

a hat costs £2

Step-by-step explanation:

Suppose

A T-shirt=x

A Hat=y

So the equation is

8x+y=42

3x+y=17

So

8x+y=42

3x+y=17

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

5x=25

x=5

So a T-shirt costs £5

3.5+y=17

15+y=17

y=2

So a hat costs £2

Answer:

t-shirt: £5

hat: £2

Step-by-step explanation:

Please see the attached picture for the full solution.


Yyhhjfffghjjgdrttyhhhftthvfrtgvfffgf

Answers

Answer: So the star equals 4 and the triangle equals 1

Step-by-step explanation:

Answer:
(4,1)

Explanation:
Stars = 4
Triangles =1

I NEED HELP ASAP

Enter your answer by filling in the boxes to complete the equations that describe the calculation.

80 ÷ 5 = __ ÷ 5 + __ ÷ 5

= __ + 6

= __

Answers

Answer:

80 / 5 = 40 / 5 + 40 / 5 = 10 + 6 = 16

Step-by-step explanation:

80 / 5 = 16

__ / 5 + __ / 5

You can do 80 / 2 to fill in those two blanks because the answer needs to equal the same as 80 / 5

80 / 2 = 40

40 / 5 + 40 / 5

8 + 8 = 16

the third blank needs to also equal 16. So you can do 16 - 6 to know what fills in the blank.

16-6

10

10+6 = 16

The last blank must equal the same as all the other equations so 16 would fill it.

If you need further help, don't be afraid to reach out with any questions. I hope this helps!

Answer:

80/5= 50/5 + 30/5= 10 + 6= 16

On Monday and Tuesday the lake received 18.45 inches of water. If it received 7.85 inches on Monday, how much did it receive on Tuesday?

Answers

18.45-7.85= 10.6 inches of rain!

Answer:

10.60 inches

Step-by-step explanation:

18.45

-7.85

_____

10.60 inches

A rectangular monitor’s size is measured diagonally from 1 corner to the opposite corner. What is the size of a rectangular monitor that is 30 centimeters wide by 24 centimeters high, to the nearest centimeter?

Answers

Answer:

38cm

Step-by-step explanation:

Using the Pythagorean Theorem, it is found that the size of the monitor is of 38 centimetres.

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

In a right triangle with legs [tex]l_1[/tex] and [tex]l_2[/tex] and hypotenuse h, these measures are related by the Pythagorean Theorem, given by:

[tex]h^2 = l_1^2 + l_2^2[/tex]

In this problem:

The diagonal of the rectangle, which is the size of the monitor, is the hypotenuse.The width of [tex]w = 30[/tex] and the length of [tex]l = 24[/tex] are the legs, thus:

[tex]s^2 = l^2 + w^2[/tex]

[tex]s^2 = 24^2 + 30^2[/tex]

[tex]s = \sqrt{24^2 + 30^2}[/tex]

[tex]s = 38[/tex]

The size of the monitor is of 38 centimetres.

A similar problem is given at https://brainly.com/question/21691542

I need to know where to place the dot​

Answers

Answer:

in your but

Step-by-step explanation:

nah jk its 3,-3

Ashley spent half her weekly allowance playing mini-golf. To earn more money her parents let her wash the car for $9. What is her weekly allowance if she ended with $15?
Show your work
please hurry up!!!

Answers

Her weekly allowance is 12$

15 total - 9 for car = 6 for half of allowance
6 + 6 = 12

Simplify 5 - 2 · 3 + 4.

Answers

5 because PEMDAS 2 times 3 6 then A add 6 + 4, 10 S subtract 10-5=5 answer is 5

Answer:

3

Step-by-step explanation:

5-2x3+4

double checking to see if i'm right!

i believe that it's 108 but i'm not too sure!! can anyone tell me?? :))

Answers

Answer:

Yep! That looks right!

Step-by-step explanation:

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