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d1i1m1o1n [39]
3 years ago
7

If the correlation coefficient in an ordinary least squares regression = 1.00, then A. all the data points must fall exactly on

a straight line with a positive slope. B. all the data points must fall exactly on a straight line with a slope that equals 1.00. C. all the data points must fall exactly on a horizontal straight line with a zero slope. D. all the data points must fall exactly on a straight line with a negative slope.
Mathematics
1 answer:
Hatshy [7]3 years ago
8 0

Answer: Option A is correct.

Step-by-step explanation:

  • The correlation coefficient(r) is a statistical measure that computes the strength of the relationship between two variables.

It lies between -1 and 1.

If the correlation coefficient in an ordinary least squares regression = 1.00.

That indicates that there is a perfect relationship between the variables.

i.e. all the data points must fall exactly on a straight line with a positive slope. .

[when r is positive, the slope of the line is positive].

i.e. option A is correct.

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Step-by-step explanation:

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Volume / height =  π r^2 h  /  h  =   π r^2 = base area.

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Step-by-step explanation:

If Mike can plow a field in 12 hours, we plows 1/12 of the field each hour.

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So if they work together, they can plow the field in 6.66 hours, that is, 6 hours and 40 minutes.

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3 0
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What is the term for two fractions that are equal to each other?
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NEED HELP ASAP! <br>Find the area of the shaded region. All angles are right angles.
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