Which is most likely the correlation coefficient for the set of data shown?

Mathematics

2 answers:

motikmotik2 years ago

8 0

we know that

<u>The correlation coefficient </u>is a number between $-1$ and $+1$ that represent the linear dependence of two variables or sets of data

Let

$A(1,4)\ B(2,1.5)\ C(3,3)\ D(4,4)\ E(5,2)$

Using the function CORREL in a Excel tool

Find the correlation coefficient for the set of data

see the attached table

the correlation coefficient is $r=-0.20801$

therefore

<u>the answer is the option B</u>

$-0.21$

sweet-ann [11.9K]2 years ago

7 0

Slope is negative with a slight gradient so = -0.21

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What is the recursive rule for an=4n−1? a1=4;an=an−1−1 a1=3;an=an−1+4 a1=−1;an=an−1+4 a1=3;an=an−1−1

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Plug in n = 1 into the nth term formula
a(n) = 4n-1
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The second term will be 7 because we add on 4 each time, as indicated by the slope of 4. This is also known as the common difference.

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----------------------------------------------------------------------------

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which is choice B

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