Im not sure what it is asking me to do

the probability that x is smaller or equal to 0 is 0.79

Explanation:

Find the probability that x is smaller or equal to 0

In the table the number that are smaller or equal to 0 are -5,-3,-2,0

And we are given the probability of each number

So all you have to do is add all the probability of the number that are smaller or equal to 0:

0.17 + 0.13 + 0.33 + 0.16 = P
0.79 = P

Where is your question?