744 Answered Questions for the topic Probability & Statistics
Probability & Statistics
01/30/16
Carter is collecting data on the number of giraffes in Africa over time.
Carter has created a scatter plot that shows the relationship between the number of giraffes g and time x.
She thinks the data might show that g is a quadratic function of x.
Which graph will...
more
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
01/26/16
Probability
Professor Jackson is in charge of a program to prepare students for high school equivalency exam. Records show that, in the program, 80% of the students need work in math, 70% need work in English,...
more
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
01/26/16
how to calculate subsets using a certain number of elements
Given that the set ?? = {??, ??, ??, ??, ??, ??}: a) How many subsets of K contain exactly 4 elements?b) How many subsets of K contain at least 5 elements?
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
01/25/16
Out of 36 random drawings what are the odds of numbers 1-12 each coming up 3 times?
If you had 12 possible outcomes what are the odds that each outcome would come up exactly 3 times out of 36 drawings?So I'm going to make a random drawing 36 times and the outcome can be numbers...
more
Follows
•
2
Expert Answers
•1
![]()
01/21/16
Help determining chances of winning in a modified game of roulette
Hey all. Wondering if you can help me out with the chances of winning in a round of N spins in a modified game of rouletteTHE GAME15 numbers, red/black and green0 : GREEN1-7 : RED8-14 :...
more
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
01/14/16
Raffle Question. See Description.
There is a raffle that involves 18 tickets. The tickets are numbered and you can select any numbered ticket you please. You decide to buy 8 tickets. Now what is the best way to decide which numbers...
more
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
01/14/16
Probability of all five men winning
among the contestants in a competitio 49 are woman and 29 men.if five winners are randomly selecte, what is the probability they are all men?
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
01/13/16
You are delt two cards from a deck of 52 find the probability that both cards are black assume 26 black cards in the deck
I am having trouble with probablity problems, other ones with percentages and such please help
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics Statistics
01/10/16
Which question do you think brought more support?
Question 1: Like Dave Barry, people generally want to appear knowledgeable and agreeable, and they want to present a favorable face to the world. How might that affect the results of a survey...
more
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics Statistics
01/10/16
Find the Probability?
In Hi-tense City, 35% of adults have high blood pressure or high cholesterol. One out of every four people has high blood pressure, and one out of every five has high cholesterol.Find the...
more
Follows
•
1
Expert Answers
•1
![]()
Probability & Statistics Statistics
01/10/16
Which is the best explanation?
Data on the diameter (in inches) and the age (in years) of a sample of 25 oak trees yielded the regression equation diameter = 1.18 + 0.165 · age and the residual plot shown here.Which of these is...
more
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics Quantitative Methods
12/28/15
Please translate the following into standard normal probability distribution
(transform x to z) with Mean μ = 30 and standard deviation σ = 4. Find P(x < 40) ; P(x > 21) ; P(30 < x < 35)
Probability & Statistics
12/18/15
Could I get some help with this please!!!!!
A certain brand of candies have a mean weight of 0.8605 g and a standard deviation of 0.0513. A sample of these candies came from a package containing 441 candies, and the package label stated that...
more
Follows
•
2
Expert Answers
•1
![]()
12/17/15
If, on the first observation the system is in state 1, what is the probability that it is in state 1 on the third observation?
A Markov chain has the transition matrix shown below:P=[0.2 0.4]
[0.8 0.6]
1. If, on the first observation the system is in state 1, what is the probability that it is in state 1 on the...
more
Follows
•
2
Expert Answers
•1
![]()
12/17/15
For each of the following vectors, find a value for x for which the vector is a probability vector.
(1)[0.1, 0.2, 0.2, x, 0.3] x=
(2)[x, 0.4, 0, x, 0.4] x=
(3)[x, 0, 2x, 0.2, x] x=
(4)[2x, 2x, 4x, 3x, 3x] x=
Follows
•
2
Expert Answers
•1
![]()
12/17/15
Find a transition Matrix
If the student attends class on a certain Friday, then he is five times as likely to be absent the next Friday as to attend. If the student is absent on a certain Friday, then he is twice as likely...
more
Probability & Statistics
12/16/15
Don't have any idea on how too do this!!!!!!!!!!!!
Could I please get some Help!!!!!!Assume that a procedure yields a binomial distribution with n trials and the probability of success for one trial is p. Use the given values of n and p to find the...
more
Follows
•
2
Expert Answers
•1
![]()
12/15/15
If the animal is initially in the woods, what is the probability that it is in the meadow on the next three observations?
If the animal is in the woods on one observation, then it is three times as likely to be in the woods as the meadows on the next observation. If the animal is in the meadows on one observation,...
more
Follows
•
2
Expert Answers
•1
![]()
12/09/15
Two aces problem !
A bridge hand has been dealt. Are the following two conditional probabilities equal? If a given hand has an ace, what is the probability that the given hand has a second ace? Given that the hand...
more
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics Discrete Mathematics
12/09/15
Probability of winning a laptop?
There is going to be a raffle in the College of Engineering and Computer Science. They are going to give away one prize. It willbe either a coffee mug, and old mouse, or a brand new Alienware...
more
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
12/04/15
Probability question?
Assume that 2% of the Brazilian population have dengue fever in 2008 and that a test correctly identifies the fever 95% of the time. Assume that a false positive occurs 5% of the time. If a person...
more
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
12/02/15
probability?
PLEASE help
the probability that a person owns a cat is 89% and the probability of a person owning a sheep is 8%. the probability of someone owning both is 6%. what is the probability of someone...
more
Follows
•
2
Expert Answers
•1
![]()
Probability & Statistics
12/01/15
How many possible ways are there to form the executive board?
The board of directors of a corporation comprises twelve members. An executive board, formed by five directors, needs to be elected. How many possible ways are there to form the executive board?
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.
