1. The following set of data is a sample of the commuting time for 12 City workers, measured in minutes.

24, 26, 26, 31, 32, 32, 33, 34, 36, 37, 38, 43

a. Compute the median

b. Compute the first and third Quartiles

c. Compute the 10th and the 90th Percentiles.

2. a. Briefly describe the difference between a distribution that is Symmetrical and one that is Skewed to the right.

b. Compute the Pearson Coefficient of Skewness for the data set in question #1.

3. Interpret the meaning of a Correlation Coefficient of -0.90.