For the given data set, find the a. mean b. median c. mode (or state that there is no mode) d. midrange. Ages of teachers in the mathematics department of a certain high school: 27, 53, 40, 56, 27, 53, 27, 48, 48, 42 O a. 42.1 b. 45 C. 27 d. 41.5 O a. 26.6 b. 45 C. 27 d. 41.5 O a. 42.1 b. 45 C. 48 d. 41.5 O a. 31.4 b. 45 C. 27 d. 41.5