A club has 50 members of which 20 are freshman, 15 are sophomores, 10 are juniors and 5 are seniors. How many ways are there to select a president, a vice president, and a secretary if they cannot be from the same class?

Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is