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Lunna [17]
3 years ago
13

Shelly found that the coefficient of determination between the age of a runner x and the runner’s finishing position y was about

0.728. What can she conclude?
72.8% of the variation in the runner’s finishing position is explained by the runner’s age.


0.728% of the variation in the runner’s finishing position is explained by the runner’s age.


53% of the variation in the runner’s finishing position is explained by the runner’s age.


0.728 more variation in the runner’s finishing position is caused by the runner’s age.
Mathematics
1 answer:
Montano1993 [528]3 years ago
5 0

Answer:

  • 72.8% of the variation in and the runner’s finishing position is explained by the runner’s age

Step-by-step explanation:

<u>The number 0.728 is converted to percentage</u>

  • 0.728*100% = 72.8%

Correct option is the first one

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Leokris [45]
<h3>Answer: The same or equal</h3>

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Explanation:

Consider an example like 3, 6, 12, 24, 48, ...

The ratio between consecutive terms is

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Each time we divide any given term over its previous one, we get the same ratio 2. We call this the common ratio. In terms of notation, the variable r is used for the common ratio, so r = 2 in this case.

As another example, the geometric sequence 5, 50, 500, 5000, ... has r = 10 as the common ratio because we multiply each term by 10 to get the next one. Moving forward has us multiply by r, moving backward and we divide by r. The value of r cannot be zero, but it can be negative.

An example with r being negative would be something like

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we just bounce back and forth between those two values. In this case, r = -1.

6 0
3 years ago
A chef at a restaurant uses 22 pounds of butter each day. About how many grams of butter does theA chef at a restaurant uses 22
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Step-by-step explanation:

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= 454 x 22 = 9988 grams

7 0
3 years ago
Let f(x) = x2 − 8x + 5. Find f(−1)
rewona [7]

Answer:

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Step-by-step explanation:

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now substitute x for -1

f(-1)=(-1)^2-8(-1)+5

now solve

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5 0
3 years ago
Read 2 more answers
Find from u.<br><br> -12u = -24
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Well, to find u, we have to remove all that is attached to it so the equation can just be u=...
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3 years ago
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Answer:

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