About this mean median mode calculator
Mean is the sum divided by the count, median is the middle value once sorted, mode is the value that appears most often, and range is the largest minus the smallest. For 12, 7, 9, 12, 15, 3, 8: sorted 3, 7, 8, 9, 12, 12, 15; mean 66 ÷ 7 = 9.43, median 9, mode 12, range 15 − 3 = 12.