A simple random sample of 10 paired values (x, y) yields the following statistical calculations: ∑x=108, ∑y=138, ∑(x2) =1249, ∑(y2) =2280, ∑(xy) =1676. What is the linear correlation coefficient?

The linear correlation coefficient is

Explanation:

It is given that ,   , , and

Also, the random sample is

The formula to determine the correlation coefficient is given by

Substituting the values in the formula, we have,

Simplifying the values, we get,

Subtracting the values in both numerator and denominator, we have,

Multiplying the denominator,

Simplifying, we have,

Dividing, we get,

Thus, the linear correlation coefficient is

answer: y=4000x+14000

step-by-step explanation:

the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)