2 years ago

PLEASE HELP A B C D ???

Mathematics

1 answer:

Levart [38]2 years ago

4 0

The answer for this would be b

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chubhunter [2.5K]

Answer:

(-4,3)

Step-by-step explanation:

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Yuliya22 [10]

The table is missing in the question. The table is attached below.

Solution :

Let X = appraised value

Y = area (square feet)

The regression line is given by :

$\hat y = b_0+b_1X$

$b_1=\frac{n\sum XY-\sum X \sum Y}{n \sum X^2-(\sum X)^2}$

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$\hat Y = 452.0841+12.3267 X$

To estimate the error variance, we have:

Error variance, $\sigma =\sqrt{\frac{\sum (Y-\hat Y)^2}n-2{}}$

$=\sqrt{\frac{587682.3}{15-2}}$

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2 years ago

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irina1246 [14]

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Alexandra [31]

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