5,341 Answered Questions for the topic probability

Probability

11/08/20

Probability question
A and B are two weak students of statistics and their chances of solving a problem in statistics correctly are 1/6 and 1/8 respectively. If the probability of their making a common error is 1/525... more
Follows • 1
Expert Answers •1
Probability

11/08/20

Probability question
Rahul speaks truth 4 out of 5 times. A die is tossed. He reports that there is a six. What is the chance that actually there was six? ... more
Follows • 1
Expert Answers •1
Probability

11/08/20

Basics of Probability
A fair 4-sided die is tossed. What is the probability that the numbers 4 or 3 are tossed?Can't seem to figure it out. Any help is appreciated thanks.
Follows • 1
Expert Answers •1
Probability Statistics

11/08/20

Probability Question
4 balls are picked at random from a box with 20 red balls, 25 black balls and 5 white balls. Let X be the number of white balls in the sample. Compute 𝑃(𝑋2 + 12 = 7𝑋).
Follows • 1
Expert Answers •1
Probability Statistics

11/08/20

Expected cost and Probability

A store owner has overstocked a certain item and decides to use the following promotion to decrease the supply. The item has a marked price of $100. For each customer purchasing the item during a... more
Follows • 1
Expert Answers •1
Probability Statistics

11/08/20

Statistics, Probability

In a certain country, 40% of the population has covid-19. If one person at a time is selected at random, what is the probability that The 1st person found with covid-19 is the 5th person... more
Follows • 1
Expert Answers •1
Probability Statistics

11/08/20

Probability Query
A box contains 3 red chips and 7 white chips. A chip is selected at random, its color noted and is set aside. Then a second chip is selected and its color noted. Let W be the number of white chips... more
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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?
Follows • 1
Expert Answers •1
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
Follows • 0
Expert Answers •1

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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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
Follows • 0
Expert Answers •2
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?
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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)
Follows • 1
Expert Answers •1
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?
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
Probability

10/29/20

How much is 1/3 of people
Follows • 1
Expert Answers •1
Probability Math Statistics

10/29/20

How do we decide if the correlation coefficient is close enough to ±1 to declare that there is correlation?
Follows • 1
Expert Answers •1
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
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.