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Korvikt [17]
2 years ago
12

.......................................................

Mathematics
1 answer:
tiny-mole [99]2 years ago
7 0

Answer:

What are we suppose to answer...

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The following data pairs represent the average temperature x (in degrees Fahrenheit) and electricity
elena55 [62]

Answer:

<u>The correct answer is C. r = 0 because is most likely the closest to the correlation coefficient of the data.</u>

Step-by-step explanation:

Using Excel, we captured the data provided for the 12 different homes for calculating the correlation coefficient manually, this way:

n = 12

∑x = 904

∑y = 2,169

∑xy = 167,532

∑x² = 69,552

∑y² = 404,615

r =  [n *∑xy  - (∑x * ∑y)]/[√(n * ∑x² - (∑x)²) * (n * ∑y²  - (∑y)²)]

Replacing with the real values, we have:

r = [12 * 167,532  - (904 * 2,169)]/[√(12 * 69,552 - 904²) * (12 * 404,615  - 2,169²)]

r = [2'010,384  -1'960,776]/[√(834,624 - 817,216) * (4'855,380  - 4'704,561]

r = 49,608/√17,408 * 150,819

r = 49,608/ 51'239.215

r = 0.00097

<u>The correct answer is C. r = 0 because is most likely the closest to the correlation coefficient of the data.</u>

4 0
3 years ago
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A rectangular made of square tiles measures 8 tiles wide and 10 tiles long what is the length in tiles of a similar rectangle 12
Agata [3.3K]
There’s are ratio which would be 8/10. 12/x should equally 8/10. So it would be 14 tiles long.
3 0
3 years ago
Slimpfy 48 show all steps
chubhunter [2.5K]

Divide the number that islf can divide by like 2 or 3 or 4 for exaples

4 0
3 years ago
Given the following equation, explain which statement is correct
Vinvika [58]
A. The equation is true.


67+33=100
70+30=100
100=100 so yes, the equation is equal.
7 0
3 years ago
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What is x 2 −6x=-156
WINSTONCH [101]

Answer:

x=39

Step-by-step explanation:

7 0
3 years ago
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