PROBLEM 2: Using cluster sampling, Sir Kerwin Rivera selected the scores of his students who got 30 and above score on their examination in Statistic and Probability to represent on the intervention. Compute the following sample mean, sample variance, and sample standard deviation. STUDENT 1 4 5 6 11 12 14 SCORES 15 30 35 40 39 36 32 31 33 40 39