803 Answered Questions for the topic Probability & Statistics
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
04/06/15
Find the probability of at least 2 successes and at least 1 failure.
Assume that n = 13, and p = [ 4/5].Find the probability of at least 2 successes and at least 1 failure.
04/06/15
What is the probability of at least 6 correct answers?
Assume that 8 questions are answered by guessing.What is the probability of at least 6 correct answers?
04/06/15
(1) 1 success in 3 trials with p = 0.2: (2) 1 success in 3 trials with p = 0.6: (3) 3 successes in 5 trials with p = [ 1/5]:
Use the following values instead of those found in your book.(1) 1 success in 3 trials with p = 0.2: (2) 1 success in 3 trials with p = 0.6: (3) 3 successes in 5 trials with p = [ 1/5]:
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
04/05/15
What is the probability that 20% (.2) or less of the population of toys is defective?
A quality control worker in a Beanie Babies factory sampled 150 toys and found that 25 were defective.What is the probability that 20% (.2) or less of the population of toys is defective?
Follows
•
1
Expert Answers
•1
![]()
Probability & Statistics
04/03/15
mean µ = 39 and standard deviation s = 10. Find the following probabilities. (Round your answers to four decimal places.)
(a) x is less than 60
(b) x is greater than 16
(c) x is between 16 and 60
(d) x is more than 60
Follows
•
2
Expert Answers
•1
![]()
04/02/15
What is the probability of selecting 1 mouse of each gender given that both are grey?
For this problem, assume there are 5 grey females, 2 grey males, 4 white females, and 5 white males. As in the book, the biologist selects two mice randomly.(1) What is the probability of selecting...
more
Follows
•
2
Expert Answers
•1
![]()
04/02/15
If the seed has germinated, what is the probability that it is of type A?
Assume that 40 percent are of type A, 20 percent of type B, and 40 percent of type C. It is known that 30 percent of seeds of type A, 60 percent of type B, and 70 percent of type C have germinated....
more
04/02/15
What is the probability that exactly one blue ball is chosen?
Assume that you have 5 red balls and 6 blue balls from which randomly to select two without replacement.(1) What is the probability that exactly one blue ball is chosen? (2) What is the probability...
more
Follows
•
2
Expert Answers
•1
![]()
04/02/15
What is the probability of neither being red given that neither is blue?
For this problem, assume the box contains 3 red balls, 5 blue balls, and 8 white balls, and that we choose two balls at random from the box.What is the probability of neither being red given that...
more
Follows
•
2
Expert Answers
•1
![]()
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.
