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marta [7]
2 years ago
11

The arm span and foot length were both measured (in centimeters) for each of 20 students in a biology class. The computer output

displays the regression analysis.
Which of the following is the best interpretation of the coefficient of determination r2?

About 37% of the variation in arm span is accounted for by the linear relationship formed with the foot length.
About 65% of the variation in foot length is accounted for by the linear relationship formed with the arm span.
About 63% of the variation in arm span is accounted for by the linear relationship formed with the foot length.
About 63% of the variation in foot length is accounted for by the linear relationship formed with the arm span.

Mathematics
1 answer:
irina1246 [14]2 years ago
6 0

Answer:

The guy above me is completely wrong hahaha.

The correct answer should have a 63%.

It's probably D. The terminology is a little confusing.

The equation of the output looks like:

-7.611 + .186(x) = y

x --> Arm span

y --> Foot span

The linear relationship is formed with the armspan.

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statuscvo [17]

Answer:

1/6 and 16.67

Step-by-step explanation:

Add all the marbles, you get 12.

There's 2 out of 12 yellow marbles so you get 2/12

2/12 simplified to 1/6

So 1/6 is the probability as a fraction

Now to get the percentage just divide 100 by 6.

100/6 equals 16.67

Since it's 1/6 we multiply that by one

16.67 times 1 equals 16.67

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2 years ago
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Answer:

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4 0
2 years ago
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bagirrra123 [75]
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8 0
3 years ago
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How do I solve without s calculator?
baherus [9]
You could solve it ( without a graph) in 2 easy ways :

1 use the equation that you have written in pencil and solve for y

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5 0
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Lyrx [107]

Answer:

-\frac{1}{2}

Step-by-step explanation:

Slope/Gradient = \frac{y1-y2}{x1-x2}

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5 0
1 year ago
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