$r^2=\mleft(\frac{n(\sum ^{}_{}xy)-(\sum ^{}_{}x)(\sum ^{}_{}y)}{\sqrt[]{(n\sum ^{}_{}x^2-(\sum ^{}_{}x)^2)(n\sum ^{}_{}y^2-(\sum ^{}_{}y)^2}^{}}\mright)^2$

Using a Statistics calculator or an online tool to work with the data we were given, we get

So the best aproximation of r² is 0.861

8 0

1 year ago

PLEASE SIMPLIFY THIS<br>

AnnyKZ [126]

Answer:

15y / 8

Step-by-step explanation:

Multiplying by 2 to get the common denominator.

3y / 4 * 2 = 6y / 8

Combine like terms.

6y / 8 + 9y / 8

Final Answer:

15y / 8

3 0

3 years ago

Find the slope and y intercept

Katena32 [7]

Y int = (0,12)
Bc the y intercept is when X = 0

Slope =
(18-15)/(4-2) =
3/2

7 0

3 years ago

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