The correlation coefficient between heights from the ground of two people on the opposite ends of a seesaw would be .

a. 1.0
b. 0
c. -0
d. cannot tell without further information

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?

Hi if you want to play a sports related kahoot go to kahoot. it and type in this code: 659344

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?