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I have a lot of trouble with finding correlation by adding…

Hi, I have a...

Hi, I have a lot of trouble with finding correlation by adding n=15 two points to each of X values. There are n=15 pairs of X and Y values with Pearson correlation of r=0.40

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Well, is there a formula for my math problem described above?

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Answered in 10 minutes by:
3/11/2018
Ashok Kumar
Ashok Kumar, Electrical Engineer
Category: Calculus and Above
Satisfied Customers: 3,153
Experience: Masters Degree in Electrical Engineering
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Kindly forward the problem. I will try to solve.

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Customer reply replied 4 months ago
Thank you. Here is the problem.A set of n=15 pairs of X and Y values has a Pearson correlation of r=0.40. If 2 points were added to each of the X values, then what is the correlation form the resulting data?a. 0.40
b. -0.40
c. 0.60
d. -0.60

It should be 0.4 as extra two x values will not affect correlation.

Ashok Kumar
Ashok Kumar, Electrical Engineer
Category: Calculus and Above
Satisfied Customers: 3,153
Experience: Masters Degree in Electrical Engineering
Verified
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Customer reply replied 4 months ago
Thanks
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