This table gives the minutes players spent practicing basketball free throws and the number of baskets they made when they were timed the next day at practice.


Practice time (min) 45 100 57 8 90 63 25 84 30 120 19 18

Baskets made 15 21 18 5 22 18 19 23 16 20 7 10


What is the correlation coefficient of the data?



0.12


0.64


0.80


0.92