In: Statistics and Probability
Given the sample of a population:
74.33 71.07 74.69 77.25 68.83 75.09 64.93 67.33 79.87 81.96 79.97 75.09
73.82 77.42 79.35 74.84 60.90 60.75 62.54 67.47 72.00 66.08 67.31 74.87 79.51 84.12 80.61 74.38 77.67 83.73
82.27 77.75 74.09 65.36 66.51 68.21 69.40 70.83 79.89 79.70 80.39 76.90
78.65 77.19 67.84 69.97 64.46 64.34 81.73 82.50 78.74 77.28
Calculate point estimate of population variance. Write fully your reasoning.