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slavikrds [6]
3 years ago
9

Which is most likely the correlation coefficient for the set of data shown?

Mathematics
2 answers:
Mariulka [41]3 years ago
6 0
The <u>correct answer</u> is:

0.872.

Explanation:

The correlation coefficient of a regression line is a measure of how closely the line fits our data.  Negative correlation coefficients represent decreasing lines; positive correlation coefficients represent increasing lines.

The closer a correlation coefficient is to +1 or -1, the better the fit; a perfect positive fit is r=1 and a perfect negative fit is r=-1.

We can see in the graph that the line is very close to our data, so it is a pretty good fit.

The line is increasing; this means we want a correlation coefficient that is close to 1.

The best choice is 0.872.
Rom4ik [11]3 years ago
5 0

Answer:

the answer is -0.872

Step-by-step explanation:

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Help ASAP need answer:)
Murljashka [212]

Answer:

C. plot a point at the y-intercept

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
10 POINTS!!! Show your work please. Thanks
Finger [1]

5 feet is 60 inches. The other side with the two lines is also 17.2 in. The two sides with only one line will each be (60 - 17.2 - 17.2) / 2, because they're equal. That will make both sides with the one mark 25.6 / 2, or 12.8 in.

You can't find the area unless you have the angle of the vertices or the height.

5 0
3 years ago
determine if the following system of equations has no solutions, infinitely many solutions or exactly one solution. x+y=5 2x-y=-
max2010maxim [7]

Answer:

(2/3, 13/3)    (Exactly one solution)

Step-by-step explanation:

Write these equations in a column:

 x+y=5

2x-y=-3

Note that we can eliminate y immediately by adding these two equations together. We get:

3x = 2, so that x = 2/3.

Substituting 2/3 for x in the first equation, we get:

2/3 + y = 5.  Clear out fractions by multiplying all three terms by 3:

2 + 3y = 15, or 3y = 13.  Then y = 13/3, and the solution is

(2/3, 13/3)      There is exactly one solution.

7 0
3 years ago
Read 2 more answers
James uses the Distributive Property to find how many cans of paint are in the art supply closet. There are 5 boxes in the close
julia-pushkina [17]

Answer:

70 cans of paint

Step-by-step explanation:

We are told in the question that:

1 box holds = 14 cans of paint

5 boxes =

Cross Multiplying

5 boxes will hold = 5 × 14

= 70 cans of paint

This question, requires that we use Distributive property

Distributive property states that: when 2 factors or numbers are multiplied together the result will be the same as splitting on of the numbers(factors) into two distinct numbers, multiplying both number by the other factor, and adding together both products.

Applying the definition above to solve the question, we would be splitting the number of boxes which is 5 into 2 distinct number = 2 and 3

As , 2 + 3 = 5

Hence, we have:

14 × 5 = 14( 2 + 3)

70 = 28 + 42

70 cans of paint = 70 cans of paint.

The numbers of cans of paint that are in the art supply closet is 70 cans of paint

5 0
3 years ago
Brent is designing a poster that has an area of 1 sq.ft. He is going to paste a photo collage on a section of the poster that is
ad-work [718]

Answer:54 th

Step-by-step explanation:

Given

Poster has an area of A=1\ ft^2

Size of photo is \frac{1}{3}\ ft\times \frac{3}{5}\ ft

and we know

1\ ft\ \text{is equal to}\  0.3048\ m

so \frac{1}{3}\ ft is 0.1016\ m

\frac{3}{5}\ ft is 0.1828\ m

So area of photo is  

a=0.1016\times 0.1828

a=0.01858\ m^2

ratio of area of photo and poster is

\Rightarrow \frac{a}{A}=\frac{0.01858}{1}\approx \frac{1}{53.819}\approx \frac{1}{54}

So photo will acquire 54^{th} Part of poster

7 0
4 years ago
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