6,5,12,8,23,18,1 and -2,-4,-3,-4 what is the average

There are four different types of averages mean, mode, range and median. Mean - add all numbers up and divide by how many numbers there are Mode - most common Median- the middle Range - largest number take the smallest. Mean = 5.454545... 6+5+12+8+23+18+1+(-2)+(-4)+(-3)+(-4) = 60 60/11 = 5.454545... Mode = -4 Median = 5 -4, -4, -3, -2, 1, 5, 6, 8, 12, 18, 23 Range = 23- (-4) = 27

Ithink the answer should be b.