788 Answered Questions for the topic Probability & Statistics

Probability & Statistics

05/14/16

how many passwords are possible if three letters are followed by two digits
 probabilities and statistics
Follows • 3
Expert Answers •2
Probability & Statistics

05/07/16

probability and statistics
3 cards are drawn randomly from a deck of 52 cards. What is the probability that at least one is a heart and one is a king?
Follows • 2
Expert Answers •1
Probability & Statistics Probability Area Integration

05/06/16

A PDF is given by formula p(x)=2e^(-2x),x>0. Determine P(X>1).?
A PDF is given by formula p(x)=2e^(-2x),x>0. Determine P(X>1).? PDF being Probability Density Function A PDF is given by formula p(x)=2e^(-2x),x>0. Determine P(X>1).?
Follows • 2
Expert Answers •1
Probability & Statistics Probability Expected Value Dice

05/06/16

Determining Probability from Expectation
A gambler is playing with a crooked(unfair) twelve-side die. The chances that certain side of a die will turn up is given in the table below, except for P5 and P6. Find P5 and P6 if it known that... more
Follows • 2
Expert Answers •1
Probability & Statistics

05/06/16

I need help with this probs and statistics question
A baseball franchise finds that the attendance at its home hames has a mean of 16000 and a standard deviation of 4000. What percent of the home games have attendances between 12000 and 20000 people?
Follows • 2
Expert Answers •1
Probability & Statistics

05/05/16

Compute the probability of answering 8 or more questions correctly by calculating the probability with a direct sum and by using complements.
I  did most of the work but I need some help on the last few questions! Thank you in advance!   Mrs. Hudson plans to give a 10 question multiple choice exam in which each question has 4 options.... more
Follows • 2
Expert Answers •1
Probability & Statistics

04/30/16

probability
question: a film distribution manager calculates that 7% of the films released are flops. If the manager is accurate, what is the probability that the proportion of flops in a sample of 638... more
Follows • 2
Expert Answers •1
Probability & Statistics Probability

04/30/16

Question in description
The probability that a randomly selected 2 year old male garter snake will live to be 3 years old is 0.83344. What is the probability that two randomly selected 2 year old male garter snakes will... more
Follows • 2
Expert Answers •1
Probability & Statistics Applied Stats

04/30/16

What is the population?
Results are based on telephone interviews conducted February 29th- March 15, 2016, with a random sample of 3,072 U.S college students, aged 18-24, who are currently enrolled full time and four-year... more
Follows • 2
Expert Answers •1
Probability & Statistics Statistics Binomial Distribution

04/29/16

find the probability of guessing correctly at least 6 of the 10 answers on a true or false examination.
the correct answer is 193/512   please explain and show all working. thanks very much! 
Follows • 2
Expert Answers •1
Probability & Statistics

04/29/16

If 20% of the group of 200 receive a free pass to Walt Disney World, what are the odds of receiving a free pass to Disney? 
Probability
Follows • 4
Expert Answers •3
Probability & Statistics

04/29/16

How many distinct license plates of this type are possible
A typical West Virginia license plate follows the pattern 4PC609, where the first, fourth, fifth, and sixth characters may be any of the decimal digits 0 through 9 inclusive, and the second and... more
Follows • 2
Expert Answers •1
Probability & Statistics

04/27/16

The mean age at which men in the United States marry for the first time follows the normal distribution with a mean of 24.1 years. The standard deviation of the
The mean age at which men in the United States marry for the first time follows the normal distribution with a mean of 24.1 years. The standard deviation of the distribution is 2.5 years. For a... more
Follows • 2
Expert Answers •1

04/24/16

If a marble is chosen at random, which of the conditional probabilities is larger, P(red|large) or P(large|red)? URGENT
A jar contains 11 large red marbles, 4 small red marbles, 8 large blue marbles, and 6 small blue marbles. If a marble is chosen at random, which of the conditional probabilities is larger,... more
Follows • 2
Expert Answers •1
Probability & Statistics Statistics Math Help Math Word Problem

04/21/16

Math probability
the probability that a student is in honors given that he or she is in mrs rollins class is 28/51. the probability that a student is not in ms rollins class given that he or she is not in honors is... more
Follows • 2
Expert Answers •1
Probability & Statistics Math Probability Math Help

04/20/16

Expected Value - buyer
You can buy a lottery ticket for $1000. The odds are as follows:  1 in 10 tickets will pay $500. 1 in 100 tickets will pay $1000. 1 in 1000 tickets will pay $200,000. 1 in 10,000 tickets will... more
Follows • 2
Expert Answers •1
Probability & Statistics Math Probability Math Help

04/20/16

Expected Value – seller
An insurance company sells a policy for $1000. Based on past data, an average of 1 in 100 policyholders will win a $20,000 claim on a policy, an average of 1 in 200 policyholders will win a $50,000... more
Follows • 3
Expert Answers •1
Probability & Statistics Probability Math Help Math Word Problem

04/20/16

Probability calculations
Probability calculations – exactly one occurrence You are looking for a job. Eventually you get six interviews. In each case you are one of four final candidates for the respective job. Let us... more
Follows • 2
Expert Answers •1
Probability & Statistics Statistics Statistics Question

04/20/16

Probability Question
The barton Company manufactures automobile charge indicator gauges. Under test conditions, these gauges are supposed to read 0 volts. However, some gauges read slightly more than 0 volts and some... more
Follows • 1
Expert Answers •1
Probability & Statistics Probability

04/18/16

help with question
Acme Airlines flies airplanes that seat 100 passengers. From experience, they have determined, on average, 84% of the passengers holding reservations for a particular flight actually show up for... more
Follows • 2
Expert Answers •1
Probability & Statistics Probability Probability Problems

04/18/16

Probability
In a b olt factory 30%, 50% and 20% of pro duction is done on machine s I, I I and I I Iresp ectively. It is known that 4%, 3% and 5% of the output of these resp ective machinesis defective.(a)... more
Follows • 2
Expert Answers •1
Probability & Statistics Precalculus Probability Sequences

04/15/16

A game involves rolling a fair six-sided die. If the number facing upward on the die is a whole number multiple of three, the player wins an amount equal to the
A game involves rolling a fair six-sided die. If the number facing upward on the die is a whole number multiple of three, the player wins an amount equal to the number on the die times $20. If the... more
Follows • 3
Expert Answers •1
Probability & Statistics Maths

04/14/16

probability
A certain medical disease occurs in 5% of the population. A simple screening procedure is available and in 3 out of 10 cases where the patient has the disease it provides a positive result. If the... more
Follows • 1
Expert Answers •1
Probability & Statistics Maths High School: Math Venn Diagram

04/14/16

Venn diagrams
The company is conducting a survey to determine the spread of two strains of viruses (type A and type B) in a certain wing of a hospital. Out of 450 patients, 267 tested positive to virus A253... more
Follows • 2
Expert Answers •1
Probability & Statistics

04/13/16

A random sample of 420 new Ford trucks showed that 105 required repairs within the first warranty year.
What is the estimate for the probability that a new Ford truck will need repairs within the first warranty year? Select one: a. 105b. 0.75c. 315d. 0.25
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.