760 Answered Questions for the topic Probability & Statistics
Probability & Statistics
04/20/15
Athletic Probability
Approximately 35% of the walk-on athletes at a given school actually make the team, according to the athletic department. Determine the probability that more than 50% of the 25 walk-on athletes...
more
04/15/15
Explain "equally likely" in continuous uniform distribution using everyday items?
What is the best way to explain "equally likely" in continuous uniform distribution to an audience using tangible or everyday items?
Follows
•
3
Expert Answers
•2
![]()
![]()
04/15/15
(1) What is the probability that she remembers to bring her briefcase every day in one week (5 days)?
about the professor who sometimes forgets to bring her briefcase to the office, but assume that, each day, the probability that she forgets the briefcase is 1/6. Assume that her forgetting is a...
more
Follows
•
2
Expert Answers
•1
![]()
04/15/15
What is the probability that at least one mouse is female, given that exactly one is gray?
Assume that you have 10 mice in the cage: 4 white males, 3 gray females, and 3 gray males. Two mice are selected simultaneously and at random, and their colors are noted.What is the probability...
more
Follows
•
3
Expert Answers
•1
![]()
04/15/15
Find Pr[A?B] under each of the following conditions:
events A and B of a sample space S, but assume that Pr[A] = 0.35 and Pr[B] = 0.5. Find Pr[A∪B] under each of the following conditions: (1) If A ⊂ B, then Pr[A∪B] = . (2) If A ∩ B = ∅, then Pr[A∪B]...
more
04/15/15
What is the probability that both balls are red given that the first ball you drew was red?
Assume that each bag contains 5 balls. Bag a contains 3 red and 2 white, while bag b contains 1 red, 3 white, and 1 blue. You randomly select one ball from bag a, note the color, and place the ball...
more
Follows
•
2
Expert Answers
•1
![]()
04/15/15
What is the probability that at least one inspector will find a defective widget?
Assume that the box contains 2 defective widgets and 10 acceptable widgets. There are 4 inspectors, each of whom selects a widget from the box at random, inspects it, and then replaces it in the...
more
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
04/13/15
19218 gas masks of the military were tested, 10322 ere defective. if 2 gas maskare selected, find the probability that they are both defective.
a.assume that the first gas mask is replaced before the next on is selected.
b.assume that the first mask is not replaced before he next one is selected.
Follows
•
2
Expert Answers
•1
![]()
04/10/15
What is the probability that the student attends at least one class on Monday?
involving a student's attendance at math and accounting classes on Mondays. Assume that the student attends math class with probability 0.65, skips accounting class with probability 0.25, and...
more
Follows
•
2
Expert Answers
•1
![]()
04/10/15
What is the probability that the Toyota leaves first?
Assume that there are 8 cars: 2 Chevrolets, 5 Fords, and 1 Toyota. Two cars leave at random, one after the other. Draw a tree diagram and use it to answer the following questions.(1) What is the...
more
Follows
•
2
Expert Answers
•1
![]()
04/10/15
What is the probability of getting exactly 4 correct answers?
about a multiple-choice test in which each question has 4 choices only one of which is correct. Assume that 9 questions are answered by guessing randomly.What is the probability of getting exactly...
more
Follows
•
3
Expert Answers
•2
![]()
![]()
04/10/15
What is the probability that the business makes a profit in exactly two of its first three years?
Assume that the business makes a profit with probability 0.3 in the first year. For each year thereafter, the business makes a profit with probability 0.6 if it made a profit in the previous year,...
more
Follows
•
2
Expert Answers
•1
![]()
04/10/15
What is the probability that the sum is 11, given that at least one of the numbers rolled is even?
involving the rolling of two fair dice. Answer the following questions.(1) What is the probability that the sum is 11, given that at least one of the numbers rolled is even? (2) What is the...
more
Follows
•
4
Expert Answers
•3
![]()
![]()
![]()
Probability & Statistics
04/09/15
What is the probability that out of 120 patients with high blood pressure, between 10 and 30 will have adverse side effects?
According to a medical study, 23% of all patients with high blood pressure have adverse side effects from a certain kind of medicine. What is the probability that out of 120 patients with high...
more
Probability & Statistics
04/09/15
probability
a Bank reports that 8 % of its credit cardholders will default at some point in time in their lives. one of its branch just mailed 12 new cards today 1. How many of these new cardholders would you...
more
Follows
•
1
Expert Answers
•1
![]()
04/08/15
Compute the following conditional probabilities
about independent events A and B in a sample space S, but assume that Pr[A] = 0.25 and Pr[B] = 0.3. Compute the following conditional probabilities: (1) Pr[A | B] = (2) Pr[B | A] =
Follows
•
2
Expert Answers
•1
![]()
04/08/15
(1) What is Pr[B] if A and B are independent events? (2) What is Pr[B] if A and B are disjoint events?
For this problem, assume that Pr[A ∪B] = 0.6 and Pr[A] = 0.35.(1) What is Pr[B] if A and B are independent events? (2) What is Pr[B] if A and B are disjoint events?
Follows
•
3
Expert Answers
•1
![]()
04/08/15
Compute the following conditional probabilities
independent events E and F in a sample space S, but assume that Pr[E] = 0.4 and Pr[F] = 0.15. Compute the following conditional probabilities: (1) Pr[E′| F] = (2) Pr[E | F′] =
Follows
•
2
Expert Answers
•1
![]()
04/08/15
Find the associated weights for each outcome.
involving weights of outcomes in a sample space S = { O1, O2, O3, O4 }. Assume that Pr[ { O1, O2 } ] = 0.51, Pr[ { O1, O3 } ] = 0.56, and Pr[ { O1, O2, O3 } ] = 0.77. Find the associated weights...
more
Follows
•
2
Expert Answers
•1
![]()
04/08/15
Determine the probability of the following events
Assume that your sample space is S = { O1, O2, O3, O4, O5 } with associated weights (probabilities) w1 = 0.15, w2 = 0.30, w3 = 0.20, w4 = 0.10, and w5 = 0.25. Determine the probability of the...
more
Follows
•
2
Expert Answers
•1
![]()
04/08/15
A bag contains 54 red marbles, 44 blue marbles, and 2 green marbles. Probability
A bag contains 54 red marbles, 44 blue marbles, and 2 green marbles. What is the probability of drawing at least 1 red marble and 1 blue marble, if four marbles total are chosen without...
more
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
04/07/15
Probability
If A and B are two independent events with P(A)= 0.15 and P(B)= 0.7, then P(A n B) is
a. 0.5500 b. 0.2143 c. 0.1050 d. 0.8500
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
04/07/15
probability question in description
This is the question: ----- scott shaves his face every morning. for the last 200days he cuts himself 36times. A.) find the probability he will cut himself tomorrow. B.) find the probability he...
more
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
04/07/15
finding probability of account balance and determining the account balance
The account balances for customers holding a particular type of a bank account with National Bank are normally distributed with mean=205,000.00 and a standard deviation=25,000.001. Determine the...
more
Follows
•
2
Expert Answers
•1
![]()
04/06/15
What is the probability of getting exactly 4 correct answers?
a multiple-choice test in which each question has 4 choices only one of which is correct. Assume that 7 questions are answered by guessing randomly.What is the probability of getting exactly 4...
more
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
