815 Answered Questions for the topic Probability & Statistics

Probability & Statistics

10/30/14

I can't figure out how to do a probability problem?
Five raffle tickets are sold for a Halloween raffle. Marty buys three of the five raffle tickets. Two of the tickets are to be drawn as winning tickets. What is the probability of Marty not having... more
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Probability & Statistics Statistics

10/29/14

Can anyone please help me in proving the below problem.I am preparing for MS it would be helpful if someone is assisting me
Need to prove the following   (a) If P(A)>P(B), then P(A|B)>P(B|A).(b) If A is independent of B, then A is independent of B'(c) If A is independent of B, then A' is independent of... more
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Probability & Statistics

10/20/14

Concerning two events A and B, the following probabilities are specified:
Concerning two events A and B, the following probabilities are specified:P(A) = .4. P(B) = .3, and P(A [ B) the symbol here between A and B is the union symbol that looks like a u. = .6. What is... more
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Probability & Statistics

10/20/14

Suppose a fair die has its even-numbered faces painted red. (The oddnumbered
Suppose a fair die has its even-numbered faces painted red. (The oddnumberedfaces are white). Consider the experiment of rolling the dieonce and the events:A = [ 2 or 3 shows up ],B = [ Red face... more
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Probability & Statistics

10/20/14

The letters A,B,C,D,E,F, and G are arranged in random order.
3. The letters A,B,C,D,E,F, and G are arranged in random order.(a) What is the probability that A and E are next to each other?(b) What is the probability that A, B, and C appearing in a row in... more
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Probability & Statistics

10/20/14

Concerning two events A and B, the following probabilities are specified:
Concerning two events A and B, the following probabilities are specified:P(A) = .4. P(B) = .3, and P(A [ B) = .6. What is the probability that“A occurs and B does not occur”?
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Probability & Statistics

10/17/14

Box 1 contains 3 red
Box 1 contains 3 red and 2 blue box 2 has 2 red and 3 blue ball from 1 is put in box 2 what is probability it is red
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Probability & Statistics

10/16/14

Suppose a fair die has its even-numbered faces painted red. (The oddnumbered
Suppose a fair die has its even-numbered faces painted red. (The oddnumberedfaces are white). Consider the experiment of rolling the dieonce and the events:A = [ 2 or 3 shows up ], (brackets are... more
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Probability & Statistics

10/16/14

concerning two events
Concerning two events A and B, the following probabilities are specified:P(A) = .4. P(B) = .3, and P(A [ B)  (this is to be a union symbol between A and B, the one that looks like a U) = .6. What... more
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Probability & Statistics

10/16/14

letters arranged in random order
The letters A,B,C,D,E,F, and G are arranged in random order.(a) What is the probability that A and E are next to each other?(b) What is the probability that A, B, and C appearing in a row in... more
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Probability & Statistics

10/15/14

probability
Suppose a fair die has its even-numbered faces painted red. (The oddnumberedfaces are white). Consider the experiment of rolling the dieonce and the events:A = [ 2 or 3 shows up ],   symbols are... more
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Probability & Statistics

10/15/14

Suppose a fair die has its even-numbered faces painted red. (The oddnumbered
Suppose a fair die has its even-numbered faces painted red. (The oddnumberedfaces are white). Consider the experiment of rolling the dieonce and the events:A = [ 2 or 3 shows up ],B = [ Red face... more
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Probability & Statistics

10/14/14

The letters A,B,C,D,E,F, and G are arranged in random order.
The letters A,B,C,D,E,F, and G are arranged in random order.(a) What is the probability that A and E are next to each other?(b) What is the probability that A, B, and C appearing in a row in... more
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Probability & Statistics

10/11/14

The probability that an airline will have to award a 2 or more discounts a month. .
What is the probability that an airline will have to award 2 or more discounts a month? Given that there are 20 passengers on a plane and give awards to a pair of matching birthdays. There are 6... more
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Probability & Statistics

10/07/14

a horse race has 11 entries and one person owns 2 of those horses. Assuming no ties what probability that those two horses finish first & second?
probability and statistics help Im stuck!!!!!!
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Probability & Statistics

10/05/14

A business group conducts a survey of the quality of service offered by the 50 auto repair shops in a certain city.
Let G = provides good service GC = does not provide good service Let L = is a local repair shop LC = is a dealer’s service center.   Use the following information to complete the table with... more
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Probability & Statistics Statistics Math Help Statistics Question

10/03/14

Stats Help help
1)You conducted a t test for independent means, and found that the t score equaled 0. This means that a. the two population means must be equal. b. the two population variances must be equal. c.... more
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Probability & Statistics

09/25/14

Find proportion given mean and standard diviation
If a student A scored 34 on a test of reading and the test had a mean of 51 and a standard deviation of 9, what proportion of test respondents scored below student A?
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Probability & Statistics

08/24/14

If a customer were to randomly pick a pen from the bag what is the most number of draws until he would have two pens of the same color?
Your business has a bag filled with 35 pens. There are 10 black pens, 8 blue pens, 2 red pens, and 15 green pens. If a customer were to randomly pick a pen from the bag what is the most number of... more
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Probability & Statistics

08/21/14

Probability Question
If you roll two dice (a green one and a red one), how many different outcomes are there for that roll? (in other words, how many different combinations could you get on the two dice)? 
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Probability & Statistics

08/21/14

Probability Question
If you flipped a coin 3 consecutive times, what would be the probability that all three results were the same?
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Probability & Statistics

08/21/14

Probability Question
What would the probability be of pulling a card out of a regular deck of playing cards and having it be black and an even number?
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Probability & Statistics

08/21/14

Probability Question
What would be the probability be of pulling a card out of a regular deck of playing cards and having it be a heart?
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Probability & Statistics

08/03/14

Probability questions.
In studying the relationship between loan delinquency and borrower characteristics, a bank found the following information:• 80% of borrowers have been employed at their present job for 3 or more... more
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Probability & Statistics

08/01/14

How to determine a p-level from a percentage.
How do you convert a percentage to a p-level?
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