A salesman normally makes a sale (closes) on 80% of his presentations. Assuming the presentations are independent, find the probability of each of the following.
a) He fails to close for the first time on his fifth attempt.
b) He closes his first presentation on his fourth attempt.
c) The first presentation he closes will be on his second attempt.
d) The first presentation he closes will be on one of his first three attempts.
A salesman normally makes a sale (closes) on 80% of his presentations. Assuming the presentations are...
A door-to-door salesman expects to make a sale 24% of the time when starting the day. But making a sale increases his enthusiasm so much that the probability of a sale to the next customer is 0.52. If he makes no sale, the probability for a sale to the next customer stays at 0.24. What is the probability that he will make at least two sales with his first three visits?
A college basketball player makes 80% of his free throws. At the end of a game, his team is losing by two points. He is fouled attempting a 3-point shot and is awarded three free throws. Assuming each free throw is independent, what is the probability that he makes at least one of the free throws?
12. (10 points) A college basketball player makes 90% of his free throws. Assuming free-throw attempts are independent. Over the course of the season, he will attempt 100 free throws. a) Use binomial distribution to find the exact probability that the number of free throws he makes is between 85 and 95, inclusive b) Check the conditions for using the normal appreciation to the binomial distribution. c) Use normal approximation to estimate the probability that the number of free throws...
12. (10 points) A college basketball player makes 90% of his free throws. Assuming free-throw attempts are independent. Over the course of the season, he will attempt 100 free throws. a) Use binomial distribution to find the exact probability that the number of free throws he makes is between 85 and 95, inclusive. b) Check the conditions for using the normal appreciation to the binomial distribution c) Use normal approximation to estimate the probability that the number of free throws...
Suppose you have a friend on the school basketball team but, unfortunately, he is not a good free throw shooter. Over the course of his career, he has only made 40% of his shots. Otherwise, he is a good player and gets fouled a lot so he shoots 10 free throws a game, on average. In the biggest game of the season, he does very well and makes 6 out of 10 free throw attempts. ? A. Assuming that each...
Exercise 4. Fred is giving out samples of dog food. He makes calls door to door, but he leaves a sample (one can) only on those calls for which the door is answered and a dog is in residence. On any call the probability of the door being answered is 3/4, and the probability that any household has a dog is 2/3. Assume that the events "Door answered" and "A dog lives here" are independent and also that the outcomes...
To complete his degree a part time student needs to do three more subjects. assuming he can only take one subject per semester, and that he passes a subject with probability 0.85 independently of his past results, find the probability that he will need more than 2 but not more than 3 years to graduate?
Suppose you were interested in how good someone was at surfing. You find that, 54% of the time, they successfully do a particular trick. 8% of the time, they do the trick with small mistakes. The rest of the time they fail to do the trick at all. - In any one attempt to do the trick, what is the probability that this person will complete it, either perfectly or with small mistakes? - Assume that surfing success rate in...
1. u imately 74% of his (10 pts) During tetwe, James' career, he successfully makes "e fhee throw attempts. If Letron James attempts & free throws per game, what is the probability that he will successfully make at least 6 free throws 5. (o pts) The Statistical Bulletin published by Metropolitan Life Insurance Co. reported that births is taken. find 2% of all-A merican births result in twins. If a random sample of 8000 the mecan variance, and standard deviation...
A. Dr. Kit (Honors) is lost and drives his Honda Accord at 22 mph for 80 minutes and then at 43 mph for 27 minutes. How far did he travel? (include units with answer) HINT: Use the Definition of Speed------- Speed = Distance/Time B. Dr. Pionke (Honors Emeritus) has some errands to run so he drives his bimmer at 22 mph for 109 miles and at 43 mph for 186 miles. How long did his trip last? (include units with...