3,458 Answered Questions for the topic probability

Probability

11/06/20

i need help in this question

 When rolling two 1-6 number cubes, the table below shows the possible products for the two numbers rolled.the pssible outcomes is 36If you rolled two number cubes, what is the probability you will... more
Probability Math Statistics

11/06/20

simulate a fair coin in at most N flips. For how many values of p is this possible?

Mathematician John von Neumann is credited with figuring out how to take a biased coin (whose probability of coming up heads is p, not necessarily equal to 0.5) and “simulate” a fair coin. Simply... more
Probability

11/04/20

About probability

There are 28 dominoes of the 28 tiles 25% are tiles with double numbers from double blank to double six. This gives you a 14.3% chance of drawing a double number. If you have 4 players each drawing... more
Probability

11/03/20

A survey was conducted to determine the tracks chosen by applied mathematics students.

Results showed that 40% chose Actuarial Science, 50% chose Financial Mathematics, and 10% chose both. What percentage of students chose neither of the two tracks?
Probability

11/02/20

given a standard normal disturbution

Given a standard normal distribution, find the probablitiy of:a. less than -0.59b. between -0.73 and 1.45

11/01/20

How to assign seats to the passengers maintaining social distancing?

Imagine there are 30 people in line to board a train that seats 100. However, per currentregulations there must be at least two empty seats between each pair of passengers. Theregulations are not... more
Probability Math Statistics

10/31/20

Need help finding the probability

"Suppose that a category of world class runners are known to run a marathon (26 miles) in an average of 143 minutes with a standard deviation of 14 minutes. Consider 49 of the races" Let X = the... more
Probability

10/31/20

binomial distribution

I have a bag with 100 balls, 30 green balls and 70 red ones. If I take a ball out of the bag 20 times (with replacement), what is the probability of getting 18 green balls given by binomial... more
Probability

10/31/20

What is the probability of drawing a heart from a deck of cards on the first draw and not drawing a heart on the second draw without replacement?

What is the probability of drawing a heart from a deck of cards on the first draw and not drawing a heart on the second draw without replacement?
Probability

10/31/20

It’s about statistics

ssume that when adults with smartphones are randomly​ selected, 62​% use them in meetings or classes. If 15 adult smartphone users are randomly​ selected, find the probability that exactly 10 of... more
Probability Math

10/30/20

What is the probability of getting seven duplicates between two bingo cards?

Assume two standard 5x5 bingo cards. On both, there are 25 total squares, and the middle square is a bonus square, and will not have a number in it. All 24 other squares will have a number on it as... more
Probability Statistics

10/29/20

Conditional Probability

Box 1 contains 4 red chips and 1 white chip. Box 2 contains 3 red, 1 black and 6 white chips. The experiment consists of randomly picking a box, then randomly picking a chip from it. Find the... more
Probability

10/29/20

Probability Query

Let A and B be two events defined on a sample space S such that P(A)=x, P(B)=y, and P(A∪B)=z. Find the following in term of x, y, and z.𝑃(𝐴' ∩ 𝐵)
Probability

10/29/20

Probability Question

A fair coin is tossed 3 times. Events A and B are defined by A: The 2nd toss is a tail; B: The 1st and last tosses are the same. Are A and B independent? Why and how?
Probability Statistics

10/29/20

Probability Question

Five cards are picked at random from a standard deck of 52 cards. For each of the following events, determine the number of sample points in the event. Leave your answer in symbolic form of... more
Probability

10/29/20

How much is 1/3 of people

Probability

10/28/20

Probability Question

Box #1 contains 4 red chips and 1 white chip. Box #2 contains 3 red, 1 black and 6 white chips. Theexperiment consists of randomly picking a box, then randomly picking a chip from it. Find... more

10/28/20

Probabilty Question: Color of the Marble

Mr.W puts two blue marbles and one green marble into his pocket. Then he randomly takes out one. After recording the color of the marble, he puts the marble back. He repeats this 6 times. a.What is... more
Probability Statistics

10/28/20

How do I find the probability ?

"Suppose 4-year-olds in a certain country average 3 hours a day unsupervised and that most of the unsupervised children live in rural areas, considered safe. Suppose that the standard deviation... more
Probability

10/27/20

Suppose 60% of students eat proper nutritious meals daily, and 20% exercise regularly. Also, there is a probability of 25% that a student does both.

Suppose 60% of students eat proper nutritious meals daily, and 20% exercise regularly. Also, there is a probability of 25% that a student does both. Find the probability that student eats proper... more
Probability

10/26/20

A single die is rolled 7 times. What is the probability that a six is rolled exactly once, if it is known that at least one six is rolled?

Can you show the steps to help me understand?
Probability

10/26/20

In a sample of 1446 U.S. registered voters, 217 said that JFK was the best

president since WWII. Two registered voters are selected at random without replacement.(a) Find the probability that both registered voters say that JFK was the best.(b) Find the probability that... more
Probability

10/25/20

A five digit code using numbers from 1 to 6 is used for remote access to voicemail. Determine the probability that a randomly selected code has the same first 2 digits.

A five digit code using numbers from 1 to 6 is used for remote access to voicemail. Determine the probability that a randomly selected code has the same first 2 digits.I am not sure the answer may... more
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