Answer:
1) 0.5 or 50%.
2) Order does not matter: 3,003 combinations.
Order matters: 360,360 permutations.
Step-by-step explanation:
1) The probability of drawing either a purple or a blue chip is the sum of both individual probabilities:

the probability that a blue or a purple chip will be drawn is 0.5 or 50%.
2)
a) Choose 5 items from a total of 15 items when order does not matter:

b) Choose 5 items from a total of 15 items when order matters:

4 (1/2 + 5/4) + -5
4 7/5 + -5
5 3/4 + -5
3/4
I can't do 3 and 4 for you but I can do 5 6 and 7.
5. Hotel B
6. Hotel B
7. Hotel A
-There are fewer values in the dataset
- In general, the values seem to increase in intervals of 20