2. (10 points] The following are the grade point average of 25 students recently admitted to the graduate program in the department of Mechanical Engineering at a university. 3.46, 3.?2, 3.51. 3.54, 3.62, 3.30, 3.36. 3.96, 3.90, 3.70, 3.60. 3.72, 3.65, 3.43, 3.91. 3.69. 36?, 3.?0, 3.66. 3.79, 3.75, 3.93, 3.34. 3.50, 3.83 {a} Calculate the sample mean f. (b) Calculate the sample stande deviation o". (c) Calculate the sample median value. {d} Determine the proportion of the data values that lie within i i 1.50" and compare the result with the lower bound Erom |Chel:r_vshev's inequality. *For (a) and (3}), please round your results to 3 decimalplaces