Answer:
32767 distinct color grouping
Step-by-step explanation:
Given data:
Total tube is 13
for distinct color, group can be 1,2,3,4,.... 15
For total number of ways we have following relation

here n = 13 so we have

for at least one


= 32767 distinct color grouping
Answer:
All of these questions, I did on paper. Gimme a sec while I upload them
Step-by-step explanation:
The right answer is
0.627