Berdine's Chicken Factory has several retail stores. When interviewing applicants for server positions, the owner would like to include information on the amount of tip a server can expect to earn per bill. A study of 470 recent bills indicated the server earned the following tips:

Amount of Tip ($)	Number
$0 up to under $5	150
5 up to under 10	105
10 up to under 20	95
20 up to under 50	75
50 or more	45
Total	470

a. What is the probability of a tip of $50 or more? (Round the final answer to 2 decimal places.)

Probability?

b. Are the categories "$0 to under $5," "$5 to under $10," and so on considered mutually exclusive?

Yes, No, Sometimes?

c. If the probabilities associated with each outcome were totalled, what would that total be? (Round the final answer to 2 decimal places.)

Probability ?

d. What is the probability of a tip of up to $10? (Round the final answer to 2 decimal places.)

Probability?