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Arturiano [62]
3 years ago
5

Guess the correlation coefficient, r. ​

Mathematics
1 answer:
sattari [20]3 years ago
8 0

Answer:

It would most likely be 0.9.

Step-by-step explanation:

The correlation coefficient ranges from -1 to 1 and is dependent on how strong the correlation is between the points. It cannot be 1.2 as it is above one and it cannot be 1 because all the points do not line up on the line of best fit. However, most do, so we can assume that there a strong positive linear relationship which means 0.9 would be the correct answer. The close r gets to zero means the less of a correlation there is. The line of best fit isn't negative so it cannot be -0.23 and it has a strongly positive correlation, not a weak one so it isn't 0.13.

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allsm [11]
Yup, that right there is a math.
7 0
3 years ago
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Consider the following linear equations. y = 2x + 5 y = 2x - 3 Which statement below if True?
Fantom [35]

Answer:

Option B is correct

Step-by-step explanation:

The equation of a straight line is given as;

y = mx + b

where m is the slope and b is y-intercept

Let’s evaluate the options one after the other;

A. This is wrong as they both have same slope of 2

C. The y-intercepts are not the same

One is 5, the other is -3

D. This is wrong, the line cannot be the same

Option B is correct

The y-intercept of both varies

While 1 is already appreciated, the other is coming back

3 0
3 years ago
What is the area of the cross section AFGD?
hjlf

Answer: The area is 15in^2

Step-by-step explanation:

The cross section AFGD is a rectangle. Then, its area can be calculated with this formula:

A=l*w

Where:

"A" is the area of the rectangle.

"l" is the lenght of the rectangle.

"w" is the width of the rectangle.

Then, from the figure, you can identify that the dimensions of the rectangle AFGD are:

l=5in\\w=3in

Therefore, you can substitute these values into the formula A=l*w to find the area of the cross section AFGD. Then, you get:

A=(5in)(3in)\\A=15in^2

3 0
3 years ago
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1.
Mumz [18]

Answer:

B. P′ (−4, 0)

Step-by-step explanation:

You can look at the graph. The X-axis always goes first. SO -4 is first because it's on the x-axis. ANSWER= (-4, 0)

7 0
3 years ago
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Answer:

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3 years ago
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