Which graph above represents a positive correlation between x and y? a. A b. B . d. None of the graphs tinn halow for questions 24 and 25. Use the information below for questions 24 and 25. Data XXX XXX XXX XXX Observation 1 2 3 4. 5 6 7 8 9 10 XXX (X-X) 12.96 0.36 6.76 1.96 40.96 0.16 1.96 21.16 11.56 2.56 XXX XXX XXX XXX XXX 100.4 = n= 136 10 24. The mean of the sample data is a. 136 b. 13.6 C. 10.04 d. 10