1. The following is a sample of scores from a recent Statistics exam: 88, 73, 99, 73,78, 71, 76, 89, 78,94, 79, 87,34, 88,77, 94, 73,72 . Compute the following: a.) Mode and median.
b.) Mean, variance and standard deviation.
c.) Coefficient of variation and coefficient of skewness.

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality