Consider the following data values. 25 18 negative 9 14 32 negative 11 ​a) Calculate the mean. ​b) Calculate the median. ​c) Determine the mode. ​d) Describe the shape of the distribution. ​a) Calculate the mean. x overbarequals nothing ​(Type an integer or decimal rounded to three decimal places as​ needed.) ​b) Calculate the median. Medianequals nothing ​(Do not​ round.) ​c) Determine the​ mode(s). Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice. A. The​ mode(s) is(are) nothing. ​(Use a comma to separate answers as​ needed.) B. There is no mode in this data set. ​d) Describe the shape of the distribution. For the purposes of this​ exercise, consider the mean and the median to be​ "approximately equal" if their difference is less than 1. Choose the correct answer below. A. Because the mean is greater than the median comma this​ distribution's shape is right dash skewed. B. Because the mean is less than the median comma this​ distribution's shape is left dash skewed. C. Because the mean and median are approximately equal comma this​ distribution's shape is symmetrical. D. Because the mean is less than the median comma this​ distribution's shape is symmetrical.