Mathematics High School

3) Bella recorded data and used her graphing calculator to find the equation for
the line of best fit. She then used the correlation coefficient to determine the
strength of the linear fit. Which correlation coefficient represents the strongest
linear relationship?
-0.9
0.3
-0.5
0.8

Answers

Answer 1

Answer:

-0.9

Step-by-step explanation:

my guess

it's supposed to be the a number closest to 1 or-1

so

-0.9 is the closest number to 1 or -1

Answer 2

The answer to this question is:

0.8

What is line of best fit and correlation coefficient?

A straight line that best approximates the given set of data is known as a line of best fit. It is a line that, on a graph, roughly straddles the center of each scatter point. The association is stronger the closer the points are to the line of greatest fit.

The equation of a line of a best fit is represented as: y=mx + c

To gauge how closely two variables are related to one another, correlation coefficients are used.

Solution:

In order to determine how closely related two sets of data are, correlation coefficient formulas are used. The formulas provide a value in the range of -1 and 1, where

1 denotes a strongly positive association.A score of -1 indicates a very adverse association.A result of zero means there is absolutely no association

The strength of the link between the variables increases with the distance between the coefficients of +1.0 and -1.0.

-0.9 is a value which is greater than -0.8, so the values which are greater than -0.8 are not considered as strong correlation coefficient.

Whereas the values which are less than 0.8 are also not considered as strong coefficients.

Hence 0.8 is the correlation coefficient which represents the strongest linear relationship.

Learn more about "correlation coefficients" here-

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Related Questions

In 4/5, 5 is the _____.

Answers

Answer:

denominator

Step-by-step explanation:

Answer:

it is the denominator

Step-by-step explanation:

Help help help help help help help help

Answers

Answer:

87,069.6

Step-by-step explanation:

HELP ASAP!!!!!! thank youuu

Answers

Can you show the full picture

The sum of rational numbers and an irrational numbers

Answers

Answer:

Step-by-step explanation:

The sum of any rational number and any irrational number will always be an irrational number.

The graph shown meets the conditions -3 ≤ y ≤ 3.
True or False

Answers

Answer:

true

Step-by-step explanation:

PLEAES HELP HURRY i will give brainliest

Answers

sfdfgjhndghjStep-by-step explanation:

Answer:

The answer is J.

Step-by-step explanation:

To find the slope of the line, pick two dots on that are EXACTLY on the grid.

I picked (0,3) and (2,2)

First, count how many units down the two points are from each other

I counted one.

Then, count how many units they are away from the side.

I got 2.

Slopes are rise over run or y over c so the slope is 1/2

The line is negative, too as it is going down so the slope is negative.

Therefore, the slope is -1/2 and only one option have a slope of -1/2 and it’s J

Also, to know which number is the slope look for the number before the x. In slope intercept form, that is the slope.

A student at lynbrook high School are building a shape below to put in their school. What is the total area of the shape and square units?

Answers

Answer:

j8jjjhvvbbbvvbbbbvvvbbbbbb

40
Step-by-step explanation:
area= length times width
1 times 10= 10 times 2= 20
2 times 10=20
20+20=40

is 10/24 equal to 8/20

Answers

Answer:

No, 10/24 is not equal to 8/20

Step-by-step explanation:

10/24=5/12 when simplified

8/20=2/5 when simplified

Therefore, 10/24 is not equal to 8/20. I hope this helps, and mark me brainliest, please!

Thank you have a wonderful Sunday!

1/6 into a decimal and percent WILL REPORT AND GIVE BRAINLYEST

Answers

Answer:

1/6 = 0.167 or 16%

Step-by-step explanation:

Okay, so to go from a fraction to a decimal, you really just have to put the dot in the right place:

1/6 = 0.167 (rounded)

So 1/6 is 0.167 as a decimal

So to find the percentage:

0.167 x 10 = 16.7

So 1/6 is 16.7%

hope this helps:)

Answer:

Decimal: 0.166666667

Percent: 16.6666667%

Step-by-step explanation:

First a decimal:

Divide 1 ÷ 6: 0.166666667

Now a percent, to convert decimals to percents multiply them by 100 and add the percent sign:

0.166666667 ⋅ 100 = 16.6666667%

A teacher randomly selects students to write the date on the board each day. If there are
12
boys and
9
girls in the teacher’s class, what is the probability the teacher chooses a girl to write the date on the board?

Answers

Answer:

75%

Step-by-step explanation:

9 divided by 12 = 0.75

- 75%

calculate the surface area of the following cylinders

Answers

Answer:

~1445.13

Step-by-step explanation:

A = 2 x pi x r + 2 x pi x r^2

Answer:

260π or id we take π=3.14 816.4

Step-by-step explanation:

h=13ft

r=10ft

A=2πr(h+r)=2*10*13*π=260π=816.4

help pls. it’s from khan academy

Answers

ANSWER: 7/6

step 1: Simplify both sides of the equation.
step 2:Subtract 2/3 from both sides.
step 3: Multiply both sides by 7/(-1).

plz answer correctly and thank you

Answers

Answer:

83

Step-by-step explanation:

get rid of decimals and become 2988/36

divide and get 83

Can someone please help me with math.

Answers

Answer:

D. (8,1)

Step-by-step explanation:

hope this helps :)

PLSS HELP THE TEACHER IS ASKING FOR MY ANSWERS CUZ I WAS SUPPOSED TO DO IT AND I NEVER WAS PREPARED PLSSS HELP IM NEXT PLS DRAW IT FOR MEE :( EVEN IF ITS EDITED I WOULD APPRECIATE TYSM HAVE A GOOD DAY!

Answers

Answer: what?

Step-by-step explanation:

I don’t know

Answer:

Just multiple each fraction by 2 on the denominator and numerator.

For the drawing part, all you have to do is draw lines until you get the number of the denominator.

Step-by-step explanation:

For. Example, 2/4 times 2 equals 4/8

So for this u would draw lines till you count that there are 8 lines.

I hope this helped you.

Have a nice day.

A plumbing contractor charges a fee of $100 a visit and an additional charge of $50 per hour. Which equation can be used to find the number of hours x he worked if he gets paid $950 for a day's work?

Answers

Answer:

100 + 50x = 950

100 - 100 + 50x = 950 - 100

50x = 850

50x/50 = 850/50

x = 17

The figure is made up of a cylinder and 2 cones. What is the volume of the composite figure? Use 3.14 for Pi. Round to the nearest hundredth.


A cylinder and 2 cones. All have a radius of 2 millimeters. The cones have heights of 4 millimeters and 2 millimeters, and the cylinder has a height of 5 millimeters.

Recall the formulas V = B h and V = one-third B h

Answers

Answer:

87.92

Step-by-step explanation:

I took the unit test review in edge 2021

A farmer would like to estimate the mean amount of milk produced per day by his 300 cows. He selects a random sample of 15 cows and records the amount of milk produced (in gallons) by those cows. The dotplot shows the data. A dotplot. A number line labeled amount of milk (gallons) goes from 20 to 32. 20, 1; 21, 1; 22, 1; 23, 1; 24, 2; 25, 3; 26, 2; 27, 1; 28, 1; 29, 1; 31, 1. Are the conditions for constructing a t confidence interval met? No, the random condition is not met. No, the 10% condition is not met. No, the Normal/large sample condition is not met. Yes, the conditions for inference are met.

Answers

Wait did you already answer it ¯\_(ツ)_/¯

What is the lateral surface of the triangular prism?

Answers

Answer:

5

Step-by-step explanation:

what is the area of the circle r=5

Answers

Answer:

A≈78.5

Step-by-step explanation:

Formula : pie * r^2

3.14 * 5^2

3.14 * 25

78.5

At a computer store, a tablet computer was on sale for 10% off. If the original price of the tablet
was P, what is the sale price in terms of P?

P-10

P-0.10

0.90P

0.10P

Answers

Answer:

the discounted price by 10% is P(x) = 0.9x. the price minus a $150 coupon is C(x) = x - 150. so, if you go to the store, the item is discounted by 10%, so you're really only getting out of your pocket 90% of that, or 0.9x, but!!

The sale price of a tablet computer is option (C) 0.90P is the correct answer.

What is sale price?

Sale price is the price that a customer pays to purchase a product or a commodity. It is a price above the cost price and includes a percentage of profit also. The price after the original price has been reduced by a discount.

For the given situation,

The discount of a tablet computer = 10% = 0.10

The original price of the tablet = P

Sale price = original price - original price(discount)

⇒ [tex]P-P(0.10)[/tex]

⇒ [tex]P(1-0.10)[/tex]

⇒ [tex]P(0.90)[/tex]

Hence we can conclude that the sale price of a tablet computer is option (C) 0.90P is the correct answer.

Learn more about sale price here

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Work out the value of (2º)?

Answers

Answer:

2⁰ means one

if there is 0 power in any terms accept 0 then the value of that term will be 1

that's why the value of 2⁰ is 2

hope it is helpful to you

(x + 1) (2x - 5) = 0

Answers

x=-1 (negative one)



(i need this part to post the answer so just ignore it lol)

Which expression has a value of 15 when n = 7?

A.43-5n

B.3n-5

C.6n-28

D.19- 28/n

Answers

Answer:

The answer is D.

Step-by-step explanation:

28/7 = 4 and 19-4 = 15.

Find the value of x
48°
132°
132°
X°

Answers

Answer:

X°

Step-by-step explanation:

there’s no other clues to what it could be, and since it’s x it would be X°

Solve the proportion.
7
b
21
18
b = [?]

Answers

Answer:

b = 6

Step-by-step explanation:

here's your solution

=> 7/21 = b/18

=> by cross multiplication

=> 21b = 7*18

=> b = 126/21

=> b = 6

hope it helps

Answer:

b = 6

Step-by-step explanation:

To find the answer, find the GCF of 7 and 21, which is 7, and divide it by 7/7 to get 1/3, now the equation is 1/3 = b/18. How many times does 3 multiply to get 18? 6, multiply the first side of the equation by 6/6 to get 6/18, now we have 6/18 = b/18, since they are the same, b = 6

Help againn!!!!! Will give 15 points

Answers

Answer:

1. 8x+10

2. 25x-7

Step-by-step explanation:

Answer:

1) 8x + 10

2) 25x - 7

Pls help!

What is 10% of 900?

Answers

Answer: 90 i hope this helps pls tell me if a m worun g

The answer is 90.............

What value represents the solution of the equation 2 (x+5) = }(2 - 4)?
A
-8
B
-6
С
6
D
8

Answers

Answer:

C -6

step by step explanation:

answer: -6

step-by-step explanation:
2 (x + 5) = (2 - 4)
2x + 10 = -2
-10 -10
2x = -12
/2 /2
x = -6

On a coordinate plane, parallelograms A B C D and E F G H are shown. Parallelogram A B C D has points (4, 2), (7, 2), (4, 6), (1, 6). Parallelogram E F G H has points (negative 2, 2), (negative 5, 2), (negative 6, 6), and (negative 3, 6). How do the areas of the parallelograms compare? The area of parallelogram ABCD is 4 square units greater than the area of parallelogram EFGH. The area of parallelogram ABCD is 2 square units greater than the area of parallelogram EFGH. The area of parallelogram ABCD is equal to the area of parallelogram EFGH. The area of parallelogram ABCD is 2 square units less than the area of parallelogram EFGH.

Answers

Answer:

The area of parallelogram ABCD is equal to the area of parallelogram EFGH.

Step-by-step explanation:

Given

Parallelogram ABCD

[tex]A = (4,2)[/tex]

[tex]B = (7,2)[/tex]

[tex]C =(4,6)[/tex]

[tex]D = (1,6)[/tex]

Parallelogram EFGH

[tex]E =(-2,2)[/tex]

[tex]F = (-5,2)[/tex]

[tex]G = (-6,6)[/tex]

[tex]H = (-3,6)[/tex]

Required

Compare the areas of both parallelograms

The area of a parallelogram is:

[tex]Area =Base * Height[/tex]

So: To do this, we plot ABCD and EFGH on a grid, then we measure the base and the height of both.

See attachment 1 for ABCD

In (1), we have:

[tex]Base = 3\ units[/tex]

[tex]Height = 4\ units[/tex]

So, the area is:

[tex]A_1 = 3 * 4[/tex]

[tex]A_1 = 12[/tex]

See attachment 2 for EFGH

In (2), we have:

[tex]Base = 3\ units[/tex]

[tex]Height = 4\ units[/tex]

So, the area is:

[tex]A_2 = 3 * 4[/tex]

[tex]A_2 = 12[/tex]

By comparison, they both have the same areas

Answer:

C)

Step-by-step explanation:

e2020

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