the test score for a math class are shown below.
81,84,82,93,81,85,95,89,86,94
what are the mean, median, and mode of the data set?
ten scores in order:
81
81
82
84
85
86
89
93
94
95
sum = 870
mean = 870/10 = 87
median 85.5 (5 above, 5 under)
mode = 81 (there are two of them)