1. Given the following values for the mode, median, and mean, determine whether you believe the distribution is symmetrical, positively skewed, or negatively skewed (1.5).

Mode = 11, median = 10, mean = 6 _____________________________

Mode = 8, median = 8, mean = 8 _____________________________

Mode = 2, median = 4, mean = 8 _____________________________

2. The following frequency distribution summarizes the number of absences for each student in a class of n = 20.

___________________________

# of absences (X) f

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6 or more 2

5 4

4 3

3 6

2 3

1 1

0 1

a. Find the mode for this distribution.

b. Find the median number of absences for this class.

c. Explain why you cannot compute the mean number of absences using the data provided in the table.