2.58 Facebook friends A student asked her coworkers, parents, and friends, “How many friends do you have on Facebook?” She summarized her data and reported that the average number of Facebook friends in her sample is 170 with a standard deviation of 90. The distribution had a median of 120 and a mode of 105.

a. Based on these statistics, what would you surmise about the shape of the distribution? Why?

b. Does the empirical rule apply to these data? Why or why not?