Answer:
Step-by-step explanation:im not good at long answers but it should push each other away.
All you do is add 23 and 65 to get your answer <span />
Answer: It is a more efficient way to find x2k than by multiplying x by itself the appropriate number of times.
Step-by-step explanation: Please find the attached file for the solution
Correlation coefficient is always between -1 and +1. So it cannot be +2.3