Mean: add all the numbers together and divide it by how many numbers there are
for plot 1:
2+3+3+4+6+9+9+9+11+11+12 = 79
There are a total of 11 numbers so divide 79 by 11
79 ÷ 11 = 7.18
for plot 2:
4+8+9+9+9+10+12+13+15+15+18 = 122
There are a total of 11 numbers so divide 122 by 11
122 ÷ 11 = 11.09
Median: Put the numbers in order from least to greatest and find the number in the exact middle
for plot 1:
2 3 3 4 6 9 9 9 11 11 12
3 3 4 6 9 9 9 11 11
3 4 6 9 9 9 11
4 6 9 9 9
6 9 9
9
for plot 2:
4 8 9 9 9 10 12 13 15 15 18
8 9 9 9 10 12 13 15 15
9 9 9 10 12 13 15
9 9 10 12 13
9 10 12
10
Mode: The number that appears the most
plot 1: there are three 9s
plot 2: there are three 9s
Range: Subtract biggest number by smallest number
plot 1:
12 - 1 = 11
plot 2:
18 - 4 = 14
The answer would be mode
Hope this helped!
