813 Answered Questions for the topic Probability & Statistics

Probability & Statistics

09/13/17

probability problem
an urn contains tags with numbers 1 to 25. one tag is picked t random. find the probabilities of the occurrence of the following events: odd number number 18 number divisible by 3  a prime... more
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Probability & Statistics

09/13/17

assume all sample points equally likely to occur
four coins are tossed. List the sample space and find the probabilities of the occurrence of the following events: A: exactly 3 heads B: Second coin heads C: more heads then tails
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Probability & Statistics Statistics Probability Statistics Question

09/12/17

The probability that the number of successes is exactly 0
assume that a procedure yields a binomial distribmutinous with 3 trials and a probability of success of 0.10. Use a binomial table to find the probability that the number of successes is exactly... more
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Probability & Statistics

09/07/17

What is the probability of this low chance even occuring at least once in 10,00 trials?
What is the probability of an event, with a 0.002% chance of occurrence, of occurring at least once in 10,000 trials? I'd say "0" intuitively but I'm not that math savvy. What is the probability?
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Probability & Statistics

09/06/17

A fair coin is flipped 9 times. What is the probability of getting exactly 6 heads?
Having difficulty understanding how to answer this question
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Probability & Statistics

08/27/17

Experience has shown that 60% of the time a strike by union workers is settled within two-weeks
Experience has shown that 60% of the time a strike by union workers is settled within two-weeks; 55% of the time the union strike fund is adequate to support a strike; and 40% of the time both... more
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Probability & Statistics

08/17/17

what is the probability of drawing a face card in a deck
 what is the probability of drawing a face card in a deck of cards
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Probability & Statistics

08/17/17

Probability exam question
A biased coin has a probability of heads P(H)=p and tails P(T)=1-P what is the probability that up to and including the nth toss at least one head has occurred?
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Probability & Statistics Probability Problems

08/16/17

probability question
A red die is tossed and then a green die is tossed. What is the probability that the red die shows an even number or the green die shows an even number? 
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Probability & Statistics

08/11/17

I have a probability and statistic question that is listed in the description area.
A tray of electronic components contains 15 components, 4 of which are defective. If 4 components are selected, what is the possibility for the followingAll four are defective.Three are defective,... more
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Probability & Statistics Statistics Question

08/07/17

Distribution of Sample Mean Question
Suppose the horses in a large stable have a mean weight of 818lbs, and a variance of 3481.What is the probability that the mean weight of the sample of horses would differ from the population mean... more
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Probability & Statistics

07/31/17

Prove by using mathematical induction that 1+2+3+...+n= [n(n+1)]/2, n is a member of N.
Prove by using mathematical induction 
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Probability & Statistics Math Probability & Statistics,

07/08/17

Please help me with this !!!! (question in the description)
A data set has a median of 58, and eight of the numbers in the data set are less than the median.The data set contains a total of n numbers.If n is even, and none of the numbers in the data set is... more
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Probability & Statistics Statistics

06/30/17

Probability question
According to the U.S Census Bureau Data, 60% of those eligible to vote actually do vote. If 2 eligible voters are chosen at random, what's the probability they both vote?   A)0.036 B) 0.16 C)... more
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Probability & Statistics Statistics

06/30/17

Probability question
Under certain conditions, there is a 0.2 probability that a randomly selected driver will fail a driving test. If 2 randomly selected drivers are tested under these conditions, what is the... more
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Probability & Statistics Probability

06/29/17

A box contains 4 red and 6 blue balls. two balls are picked at random without replacement. What's the probability of drawing balls not of the same color?
probability, statistics
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Probability & Statistics

06/27/17

The data set is number of accidents in each month. What is the probability of an accident occuring in each month based on the data set?
Data Set   Month               # ClaimsAugust                   663October                  589June                       581September              578April                       562November    ... more
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Probability & Statistics

06/24/17

What are the chances of rolling a 3 on one die and then rolling the die and obtaining a 4
Probability question 
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Probability & Statistics

06/21/17

How many arrangements are there of the word probability
Probability
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Probability & Statistics

06/20/17

Probability that neither will score
When Laura and Michelle play in the hockey team, the probability that's Laura will score is 1/3 and that Michelle scores is 1/2. Find the probability that NEITHER will score in the next game. 
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Probability & Statistics

06/20/17

What is P(A'+B)
If P(A)= 0.2, P(B)= 0.5 and P(AxB)= 0.1    Find P(A'+B) 
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Probability & Statistics

06/19/17

What is the probability that Natasha got it right?
Billy answers on average 5 questions right out of 7. Natasha's average is 5 questions out of 9. They both attempt the same problem. If the question is answered correctly, what is the probability... more
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Probability & Statistics

06/19/17

What is the probability that Billy got it right?
Billy answers on average 5 questions right out of 7. Natasha's average is 5 questions out of 9. They both attempt the same problem. If the question is answered correctly, what is the probability... more
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Probability & Statistics

06/17/17

Suppose that at an airport security checkpoint, 1 in 50 people are randomly selected for a search.
Suppose that at an airport security checkpoint, 1 in 50 people are randomly selected for a search. If there are 33 people ahead of you in line, what is the probability that you will be the first... more
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Probability & Statistics

06/15/17

A standard pair of six-sided dice is rolled. What is the probability of rolling a sum less than or equal to 4?
A standard pair of six-sided dice is rolled. What is the probability of rolling a sum less than or equal to 4?
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