14,12,17,18,14, 8
mean:13.8333... so about 13.8
median: order from least to greatest so: 8, 12, 14, 14, 17, 18. Add the two middle numbers and divided by 2: 14 + 14 = 28/2 = 14 so the median is 14
mode: 14
range: minimum-maximum= range so 18 - 8= 10 so the range is 10
Hope this helps