5,395 Answered Questions for the topic probability

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
Probability

08/11/21

Probability of having concert seats 109 and 110 for separate concerts
I went to an Alan Parsons Project concert in Feb 2020. I got seats 109 and 110. I flew from my residence in PA to CA to see Alan Parsons at The Sabin Theater in LA. About Feb of 2020 as well I... more
Follows • 2
Expert Answers •1
Probability

08/10/21

Two dice are rolled. Determine the probability of the following. ("Doubles" means both dice show the same number.) rolling a 4 or doubles
Follows • 1
Expert Answers •1
Probability Math

08/10/21

A pair of dice are tossed. What is the probability that doubles are rolled, given that the sum on the two dice is less than 10?
Follows • 1
Expert Answers •1
Probability Mathematics

08/09/21

Help with Permutation and combination question!
You have 10 concert tickets of EDM and 7 concert tickets of classical singer . What is the total number of ways in which tickets can be given to three person if they may receive any number of... more
Follows • 1
Expert Answers •1

08/07/21

probability density function
Let X be the amount of time (years) before a new battery stops working. X has the probability density functionf(t) = { C e^(-0.4t) , t ≥ 00 , otherwise,where C is a constant.Find C (using (Pr(-inf... more
Follows • 2
Expert Answers •1

08/07/21

probability density function, find SD(X), find cumulative distribution function (CDF)
Let X be the amount of time (years) before a new battery stops working. X has the probability density functionf(t) = { C e^(-0.4t) , t ≥ 0 0 , otherwise,where C is a... more
Follows • 1
Expert Answers •1
Probability

08/07/21

probability, Statistics
Consider a scenario that you when to a shop where you are the fourth person in the line to purchase the item (you only want to purchase bottle), shop keeper only has two bottle and one... more
Follows • 1
Expert Answers •1
Probability Math Statistics

08/07/21

A box with 5 white balls, and 4 balls from which four balls were selected. calculate:
the probability of getting two white balls. the probability of getting a white ball at most. the probability of getting at least two blue balls.
Follows • 1
Expert Answers •1
Probability Math Statistics Maths

08/07/21

A die is tossed twice. Given that the sum is greater than 7, what is the chance of getting a pair?
A die is tossed twice. Given that the sum is greater than 7, what is the chance of getting a pair?
Follows • 1
Expert Answers •1
Probability Math Statistics

08/07/21

Probability question: A spaceman's supply of oxygen comes from two independent sources.
A spaceman's supply of oxygen comes from two independent sources. Source A has probability 0.9 of working, and Source B has probability 0.8 of working. What is the probability that at least one of... more
Follows • 1
Expert Answers •1
Probability Math Statistics

08/06/21

A coin has been dropped three times in a row and each time the face is observed:
What is the probability of getting a head in the second drop?
Follows • 1
Expert Answers •2
Probability Statistics

08/05/21

would you believe that the mathematician's estimate for the population proportion of pennies with post-2000 mint dates is mistaken?Briefly explain your reasoning. 
Suppose a mathematician arrives at the estimate that 70% pennies in circulation were minted after the year 2000. We take a random sample of 5 pennies and only 2 of the pennies (40% ) have post-2000... 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.