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3 years ago

For which of the following correlations would the data points be clustered most closely around a straight line?

Mathematics

1 answer:

Flauer [41]3 years ago

7 0

Answer:

The correct option is C) r=-0.80

Step-by-step explanation:

Consider the provided information.

Properties of r in a scatter plot:

The value of r is between -1 and +1.

If the value of r is positive then it associated with positive relationship if the value of r is negative it associated with negative value.

The greater value of r would be closely around a straight line(Regardless of sign).

Now consider the provided relation.

The use of regression line is to minimize the distance between projections and real values.

Correlation is inversely proportional to difference between predicted values and actual values.

So for good fit we just need to look for the highest value of r regardless of the sign.

From the provided options the highest value of r=-0.80

Thus, the correct option is C) r=-0.80

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saveliy_v [14]

Answer:

Step-by-step explanation:

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2 years ago

What is the center and radius of the circle that has the equation x+72+y-42=49? Explain.

balu736 [363]

Answer: The center is (-7, 4) and the radius is 7.

Step-by-step explanation:

The equation for a circle usually is:

(x - a)^2 + (y - b)^2 = R^2

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I guess that the equation in this case is:

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then, in this case we have:

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this means that the center of our circle is in the point (-7, 4)

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3 years ago

Solve for x <br> -3(-5x+2)+x-3=39

omeli [17]

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3 years ago

Please help Thank you

lara [203]

Answer:

75 degrees

Step-by-step explanation:

let x unknown number

5x+10x+9x=180

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x=7.5

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2 years ago

​For which of the following correlations would the data points be clustered most closely around a straight line?

For which of the following correlations would the data points be clustered most closely around a straight line?