Question

HELPPPPPPPPPP!!!!!!! Calculate the correlation coefficient for the following data, showing all work. What does it tell you about the data?

Answer 1

Answer:

I will show the way.

Step-by-step explanation:

r is the correlation coefficient

$r=\frac{SSxy}{\sqrt{(SSxx)(SSyy)}}$

To find SSxy

SSxy= ∑$xy$- ∑$\frac{(x)(y)}{n}$

To find SSxx

SSxy= ∑$x^{2}$- $($∑x$)^{2}$/n

To find SSyy

SSxy= ∑$y^{2}$- $($∑y$)^{2}$/n

if your r is near +1, it shows strong positive correlation. Y is proportional to X.

And if it nears -1, it would show strong negative correlation. Y is inversely proportional to X.