The table below gives the marks obtained from a population of 10 * 2 points students in statistics. Calculate standard deviation. (round off to 2 decimal places) Student 1 2 3 4 5 6 7 8 9 10 Marks : 43 48 65 57 31 60 37 48 78 59 O 13.98 12.23 O 13.26 O 14.21 Solve for the weighted mean of the following data. (Round off to 2 * 2 points decimal places) X 20 22 25 31 35 40 42 W 5 12 15 20 25 14 10 O 34.54 C 35.23 O 32.56 O 33.56Classes 31 37 6 10 45 51 15 59 65 1 0 73 79 1 O 46.69 O 45.47 O 44.63 O 46.50 Compute the median value. * 2 points Classes f 31 37 6 ? 10 45 51 15 3 59 65 1 0 73 79 1 O 46.52 O 45.43 O 47.90 O 44.50