Answer:

Step-by-step explanation:
Given


Required

First, calculate 
We have:

This gives:

Substitute 


Substitute 



Split

This gives

I believe the answer would be B, since both situations give you 6 chances at drawing/rolling the right number/marble.
(-5/3)•(-6/1)=(30/3)
(30/3) simplified is (10/1)
The median or the mode which is three, but not the average because there is an outlier in the set, which is 19 and would skew the data higher than it should be.