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3 years ago

7

Which answer is the best estimate of the correlation coefficient for the variables in the scatterplot?

1 answer:

Yuri [45]3 years ago

8 0

-0.8 would be the best estimate.

The data seem to have a negative correlation, since they are decreasing; this means our r-value will be negative.

Our two negative choices are -0.25 and -0.8. -0.8 would be a fairly strong correlation, whereas -0.25 would be a weak correlation. The data do seem to be fairly strongly related, so we will use -0.8.

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Please I need help with this question: 2 + 2d > 6

Aleonysh [2.5K]

$d > 2$

Step-by-step explanation:

1) Subtract 2 from both sides.

$2d > 6 - 2$

2) Simplify 6 - 2 to 4.

$2d > 4$

3) Divide both sides by 2.

$d > \frac{4}{2}$

4) Simplify 4/2 to 2.

$d > 2$

Therefor, the answer is, d >2.

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3 years ago

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3 years ago

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DochEvi [55]

For the first figure the Circumference of the circle is: 5.3 $\ip$ $\pi$ cm.

For the second figure the Circumference of the circle is: 80 $\ip$ $\pi$ inch.

<h3>What is Circumference of the Circle?</h3>

The circumference of a circle is defined as the linear distance around it.

i.e., $C= 2 *\pi*r$

For First Figure,

Circumference of the circle:

$= 2 *\pi*r$

$= 2 *\pi* \frac{5.3}{2}$

$= 2 *\pi*2.65$

$Circumference= 5.3*\pi cm$

For the second Figure,

Circumference $= 2 *\pi*r$

$= 2 *\pi*40$

$= 80 *\pi$

$Circumference =80\pi \;inch$

For the first figure the Circumference of the circle is: 5.3 $\ip$ $\pi$ cm.

For the second figure the Circumference of the circle is: 80 $\ip$ $\pi$ inch.

Learn more about circumference of circle here:

brainly.com/question/23239017

#SPJ1

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3 years ago