Mean: 3.9090909090909
median: 3
mode: 2
range: 12
D is the answer for this one as well
20,27,34
The common difference is 7
Assume that the other number is y.
we know that the addition of both number is -9
this means that:
x+y=-9
reorder this equation to seperate the y variable:
y=-9-x
You need to multiply the four numbers and then takeway