4. 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 500 recent bills indicated the server earned the following tips: Amount of Tip (S) SO to under $5 5 to under 10 10 to under 20 20 to under 50 50 or more Total Number 200 100 75 75 50 500 a. What is the probability of a tip of $50 or more? b. Are the categories S0 to under $5,"$5 to under $10," and so on considered mutually exclusive? c. If the probabilities associated with each outcome were totaled, what would that total be? d. What is the probability of a tip of up to $10? e. What is the probability of a tip of less than $50