If you multiply a negative number by a positive number, you get a negative product. if you were to multiply two positive or two negative numbers, you'd get positive products.
SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Get the given data values
STEP 2: Write the formula for calculating the coefficient
STEP 3
: Calculate the correlation coefficient
Using the calculator,
Hence, the value of r is 0.791
The modulus of the complex number was derived by using Pythagorean Theorem. So it is essentially the length between complex point and origin (0,0).
So one with the greatest modulus is the one that are farthest away from the origin. z₁ looks significantly far compared to other complex points, so the answer is F.