Answer:
8
Explanation:
We are given that
Total marbles =7
Number of red marbles=4
Number of two green marbles=2
Number of yellow marbles=1
We have to find the total number of outcomes are there in the event that Pablo picks one marbles of each color when Pablo randomly picks three marbles from a bag.
Combination formula:

Using combination formula
Total number of outcomes=

Total number of outcomes=

Total number of outcomes==

Hence, total number of outcomes are there in event that Pablo picks one marbles of each color=8