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2 years ago

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

Mathematics

2 answers:

motikmotik2 years ago

8 0

we know that

The correlation coefficient 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

the answer is the option B

$-0.21$

sweet-ann [11.9K]2 years ago

7 0

Slope is negative with a slight gradient so = -0.21

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2 years ago

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Question:

A contractor has at most $42 to spend on nails for a project. Finishing nails cost $0.45 per pound and common nails cost $0.60 per pound. He would like to purchase at least 30 pounds of nails total. Write a system of linear inequalities

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