5,341 Answered Questions for the topic probability

Probability Statistics Prob

08/30/21

Probability and statistics
A company is trialling a new COVID test. They find that the probability that the test is positive given that the patient does have COVID is 0.94, whereas the probability that the test is positive... more
Follows • 1
Expert Answers •1
Probability

08/30/21

Probability Question

Each year the Yellow Pencil Company makes millions of #2 pencils. They come in boxes of 12. A recent quality check found that 0.1% of pencils they produce are faulty. It is assumed the production... more
Follows • 1
Expert Answers •1
Probability Algebra 2

08/30/21

Algebra II Question
Two boxes contain balls of various colors. Box A contains 5 red balls and 2 green balls, and Box B contains 3 red balls and 4 green balls. One ball is randomly drawn from each box. What is the... more
Follows • 1
Expert Answers •1
Probability Statistics

08/29/21

probability stats
Suppose that a pest control program is dealing with two types of rats, black and brown.It is found that the probability of a rat being brown, given that it is caught in a trap, is 0.85.It is... more
Follows • 1
Expert Answers •1
Probability Statistics

08/28/21

statistics probability
Suppose that the tourism board decides to look over their data on international tourists in the USA to make some predictions for when tourism resumes.They find that the probability that an... more
Follows • 1
Expert Answers •1
Probability

08/28/21

An engineering system problem
An engineering system consisting of n components is said to be a k-out-of-n system (k ≤ n) if the system functions if and only if at least k of the n components function. Suppose that all... more
Follows • 1
Expert Answers •1

08/23/21

Sampling Distribution: Customers at the Madison Coûteux are polled on a routinely basis. The conglomerate's administration states that its customers, 75% of them, valued the food as very good.
Customers at the Madison Coûteux are polled on a routinely basis.The conglomerate's administration states that its customers, 75% of them, valued the food as very good.A consumer-based testing... more
Follows • 1
Expert Answers •1

08/23/21

Sampling Distribution: There are 350 workers in a firm, with an average age of 37.6 years and an 8.3 years of standard deviation.
There are 350 workers in a firm that consists of the following:-An average age of 37.6 years-Standard deviation of 8.3 yearsWhat is the probability that a random sample of 45 employees would have... more
Follows • 1
Expert Answers •1

08/23/21

Normal Distribution: Credit card balances, consisting of mean = $2870, standard deviation = $900.
Normal Distribution question: Credit card balances, consisting of:Mean = $2870, standard deviation = $900.25 credit card holders are chosen at random.What is the probability that the mean balance... more
Follows • 1
Expert Answers •1
Probability Statistics

08/23/21

Areas under The normal Curve
The mean of 200 numbers is 52 with a standard deviation of 7, what is the probability of getting a number between 50and 72?Write your answer in four decimal places.
Follows • 1
Expert Answers •2

08/22/21

Student T Distribution question: Explain how P (t2 < ‐2.92) = 0.05 ?
Is it because of P (t2 < -2.92) being the same as 1 - P (t2 > -2.92), or how?(The degrees of freedom is 2)
Follows • 1
Expert Answers •1
Probability Math Statistics Help

08/22/21

Pistol Competition Probability pls help
A, B, C and D are to fight a four-cornered pistol competition. All know that A's chance of hitting his target is 0.3, C's is 0.5, B never misses, and D is 0.7. The order of shooting is... more
Follows • 2
Expert Answers •1

08/22/21

Continuous Probability Distributions (Standard Normal Distribution) question: If the daily consumption of the average person follows a normal distribution that consists of the following..
If the daily consumption of the average person follows a normal distribution that consists of the following: 3.58 (mean), 1.04 litres (standard deviation)How many litres do 67.72 percent of... more
Follows • 2
Expert Answers •2
Probability Math Statistics

08/21/21

probability pls help
A, B, C, D were given pistols for a competition. The participants will try to shoot their competitors. If the person is hit, that person will be out of the competition. The shooting will turn in... more
Follows • 2
Expert Answers •2
Probability Math

08/21/21

Cornered Duel Probability pls help
A, B, C, D were given pistols for a competition. The participants will try to shoot their competitors. If the person is hit, that person will be out of the competition. The shooting will turn in... more
Follows • 1
Expert Answers •1

08/19/21

Expected Value question: If E (Y) = 6, then E (6Y - 4) =
If E (Y) = 8, then E (6Y - 4) =
Follows • 1
Expert Answers •2

08/19/21

Variance question: If V (Y) = 6, then V (2Y- 4) =
If V (Y) = 6, then V (2Y- 4) =
Follows • 1
Expert Answers •2

08/16/21

Law of Variance question: If V (Y) = 12, then V (4Y - 8) :
If V (Y) = 12, then V (4Y - 8) ?
Follows • 1
Expert Answers •1
Probability Chance

08/16/21

Probability question. (must be in decimal form)
Question. The probability that Samantha gets a multiple-choice question correct is 0.6. Sammantha attempts 3 multiple choice questions. The probability that she gets at least one correct is:
Follows • 1
Expert Answers •1

08/16/21

Continuous Probability Distributions, Normal Distribution: If 500 pupils' scores that were gathered are within a normal distribution..
If 500 pupils' scores that were gathered are within a normal distribution, and that the mean is 70, the variance is 16, and the standard deviation is 4:1) At random, a pupil was chosen. What is the... more
Follows • 1
Expert Answers •1

08/15/21

The question is about probability and about actuarial statistics
The question has 3 parts -Question- In a class of 92 students probability of you getting to the top is half of any other student. What is the probability of you getting to the top ?These 92... more
Follows • 2
Expert Answers •1
Probability Math Statistics

08/15/21

Probability Question
Probability Question pls help10 randomly selected children are asked if they eat this kind of fruits: mango, blueberry, strawberry, apple, grapes, avocado, orange, bananaChild 1 - blueberry,... more
Follows • 1
Expert Answers •1
Probability Math Help

08/15/21

Probability Question pls help
10 randomly selected children are asked if they eat this kind of fruits: mango, blueberry, strawberry, apple, grapes, avocado, orange, bananaChild 1 - blueberry, strawberry, banana, mangoChild 2 -... more
Follows • 1
Expert Answers •1
Probability

08/13/21

2 probabilities

The end result should only be 1 of 2 (green or blue).Scenario 1 : A+B has 55% probability of equalling green.Scenario 2 : C+D has 72% probability of equalling green.Question : can the 2 scenarios... more
Follows • 0
Expert Answers •1
Probability

08/12/21

Combine 2 probabilities
There is a pathway with a farm on each side (right and left)A: a chicken walks through the pathway and has 75% probability of turning right going to the right farmB: a duck walks through the... more
Follows • 1
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.