Chapter 11 Psrm
Mean and variance. Central tendency Data:2, 3, 3, 3, 4, 6, 6, 9, 12, 13, 13 Mean:2+3+3+3+4+6+6+9+12+13+13 11 = 6.72 Median:2, 3, 3, 3, 4, 6, 6, 9, 12,