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Problem 1. Complete the given frequency distribution table and find the following. 1. Mean 2. Median 3. Standard Deviation 4. Skewness 5. Kurtosis Class Interval 31 - 35 36 - 40 10 11 -45 15 46 -50 20 51 -55 15 56 - 60 10 61 -65 5 Problem 2. Find the area from z = 1.25 and z = 2.0 Problem 3. In a given distribution, the mean is 65 and the standard deviation is 6. Find the corresponding standard score of 68