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aalyn [17]
1 year ago
5

Given the data shown below, which of the following is the best approximation of the coefficient of determination (r^2)

Mathematics
1 answer:
HACTEHA [7]1 year ago
8 0

The coefficient of determination can be found using the following formula:

r^2=\mleft(\frac{n(\sum ^{}_{}xy)-(\sum ^{}_{}x)(\sum ^{}_{}y)}{\sqrt[]{(n\sum ^{}_{}x^2-(\sum ^{}_{}x)^2)(n\sum ^{}_{}y^2-(\sum ^{}_{}y)^2}^{}}\mright)^2

Using a Statistics calculator or an online tool to work with the data we were given, we get

So the best aproximation of r² is 0.861

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What is the solution to the system below? X=7
Olegator [25]

Answer:

A)(7,-9)

Step-by-step explanation:

we know x=7

so put it in the equation

y= -2(7)+5

y=-9

we always put the x coordinate first and then the y coordinate so the answer is (7,-9)

8 0
3 years ago
NEED HELP ASAP Which of the following equations describe the line shown below?
bagirrra123 [75]
(-1,6)(2,-6)
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y = mx + b
slope(m) = -4
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sub and find b, the y int
6 = -4(-1) + b
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y - y1 = m(x - x1)
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sub
y - 6 = -4(x - (-1) =
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y - y1 = m(x - x1)
slope(m) = -4
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sub
y - (-6) = -4(x - 2) =
y + 6 = -4(x - 2) .... here is one, but it is not an answer choice
6 0
3 years ago
i need a data set for a project and i cant think of 2 things to compare please help quick will give brainliest please give me 2
Zinaida [17]

Answer:

ok so here... 1:people and animals  2:math and science 3:shoes and sandals 4:cats and dogs   thats all i could have thinked of.

Step-by-step explanation:

5 0
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olganol [36]
Which of what following? Is it suppose to be multiple choice?
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3 years ago
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Vitek1552 [10]

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there is not enough information to solve

Step-by-step explanation:

You need two ordered pairs to calculate the average rate of change.

Let's say the value of the function at n = 1 is a, and the value of the function at n = 3 is b, then the average rate of change from n = 1 to n = 3 is

(b - a)/(3 - 1) = (b - a)/2

4 0
2 years ago
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