Answer
a. PC=2, positively skewed
b. PC=-2.25, negatively skewed
c. PC=0, symmetric
d. PC=0.3, positively skewed slightly
Work Step by Step
Use the given formula:
a. Mean =10, median= 8, standard deviation = 3. PC=2, positively skewed
b. Mean = 42, median = 45, standard deviation = 4. PC=-2.25, negatively skewed
c. Mean = 18.6, median = 18.6, standard deviation = 1.5. PC=0, symmetric
d. Mean = 98, median= 97.6, standard deviation= 4. PC=0.3, positively skewed slightly
