The number of credits being taken by a sample of 13 full-time college students are listed below. find the mean, median, and mode of the data, if possible. if any measure cannot be found or does not represent the center of the data, explain why. 8    8    11    11    8    9    7    7    7    7    7    7    10    find the mean. select the correct choice below and, if necessary, fill in the answer box to complete your choice. a. the mean is nothing . (type an integer or decimal rounded to one decimal place as needed.) b. the data set does not have a mean.