Given the following frequency table consisting of the amount of weight (pounds) gained / lost by a sample of students over an exam period: -10 -5 0 5 10 15 2 f 3 3 1 4 7 7 Determine the following: a. Mode(s) b. Median 0 c. Mean 0.00 Round to two decimal places if necessary d. Range 0 e. Sample variance 0.00 Round to two decimal places if necessary f. Sample standard deviation 0:30 Round to two decimal places if necessary