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I have found that there are two formulas for the variance of hypergeometric distribution. Which one is the right one or how are they equal?
by Kris Kringle on May 7th, 2012
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no answers
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in Probability
What does"digital"mean?
by Answerbag Staff on July 27th, 2010
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one answer
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in Probability
If I have 60 cards in a randomly shuffled deck, 40 marked C and 20 marked L, if I draw 7 cards what is the probability that 1 will be an L?
by Magic Man on May 7th, 2012
| 1 person likes this
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2 answers
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in General Probability
How many different combinations are there for a 3-digit lock?
by Answerbag Staff on April 28th, 2010
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one answer
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in Probability
P(x=2) for n = 10, p = .4
by angela.black on April 29th, 2012
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one answer
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in General Probability
How many different seven-digit phone numbers are possible if the first digit cannot be 0 or 1?
by Answerbag Staff on July 23rd, 2010
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3 answers
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in Probability
In how many ways could a committee of 3 or 4 people be formed from a staff of 15?
by Joshua_A3595 on April 24th, 2012
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one answer
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in Probability
How many ways can you roll two six-sided dice?
by Answerbag Staff on July 13th, 2010
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5 answers
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in Probability
Is a two times increased risk a 100% or 200% increased risk?
by Ombliss22 on April 7th, 2012
| 3 people like this
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6 answers
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in Probability
Why should you calculate the percent yield?
by Answerbag Staff on May 16th, 2010
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one answer
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in Probability
What is more likely? Winning the lottery or being hit by a meteorite?
by Marky Mark on April 5th, 2012
| 4 people like this
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11 answers
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in General Probability
What is a nominal distribution?
by Answerbag Staff on March 11th, 2010
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2 answers
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in Probability
What are the chances of being hit by a meteorite?
by Marky Mark on April 5th, 2012
| 2 people like this
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7 answers
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in General Probability
What does the t statistic mean?
by Answerbag Staff on July 6th, 2010
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one answer
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in Probability
Road traffic crashes kill about 3200 people a day! With a 100 to 1 chance of being one of them. Is it sane to stay at home?
by Ombliss22 on April 2nd, 2012
| 1 person likes this
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8 answers
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in General Probability
What Is the Monte Carlo Method?
by Answerbag Staff on June 21st, 2010
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2 answers
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in Probability
Road traffic crashes kill about 3000 people a day! With a 1000 to 1 chance of being one of them. Is it sane to stay at home?
by Ombliss22 on April 2nd, 2012
| 2 people like this
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3 answers
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in General Probability
Who invented actuarial science?
by Answerbag Staff on February 19th, 2010
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one answer
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in Probability
If a coin is tossed THREE times what is the probablity of getting AT LEAST TWO tails?
by AMPLiFiER4life on March 28th, 2012
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8 answers
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in Probability
At what height do balloons pop?
by Answerbag Staff on May 14th, 2010
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one answer
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in Probability
Is there a non-commutative heads and tails sequence game?
by Ombliss22 on March 27th, 2012
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no answers
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in General Probability
How many combinations are there in a 3 number lock?
by Answerbag Staff on April 28th, 2010
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one answer
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in Probability
There are 5 quarters, 2 dimes, and 2 pennies in a bag. What are the probabilities of getting 0 quarters? And what about getting 2 quarters?
by sanchez181 on March 22nd, 2012
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4 answers
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in Probability
If a person rolls doubles when tossing two dice, the roller profits $55.if the game is fair,how much should the person pay to play the game?
by kaykudi on March 20th, 2012
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no answers
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in Probability
If you flip a coin 99 times and it comes up tails every time, what's the probability % that it would come up heads on the next flip?
by Marky Mark on March 16th, 2012
| 6 people like this
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19 answers
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in General Probability
Tell me something impossible, will you please?
by prof. mes solzhenitsy on March 2nd, 2012
| 10 people like this
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24 answers
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in General Probability
The probability that 8 people have different birthdays is 0.9257. But how do you arrive at that answer. Please show step by step.
by mema08618 on February 29th, 2012
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one answer
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in Probability
15% of people 65 and older get cold each year. Given a random sample of 3 people over 65 what is the probability that at one gets a cold
by Rebeccakessler35 on February 18th, 2012
| 1 person likes this
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2 answers
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in General Probability
What percentage of your waking hours do you stand up?
by Ombliss22 on February 9th, 2012
| 2 people like this
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2 answers
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in Probability
There are 30 marbles in a jar, 20 red and 10 green. If I draw 5 randomly,what is the probability that 3 of them are green?
by Daniel_O4950 on January 30th, 2012
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one answer
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in Probability
What are the odds of one factor that make the earth suitable for life, to
arise by chance, of two, of ALL the factors? What of prophecies?
by TrueSeeker on January 1st, 2012
| 2 people like this
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6 answers
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in General Probability
There's a five percent chance of something happening as a result of some action. How many times must that action repeat until it happens?
by Random on December 30th, 2011
| 1 person likes this
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7 answers
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in Probability
If we choose to lose faith in the improbable, doesn't it then become the impossible?
by Random on December 28th, 2011
| 2 people like this
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5 answers
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in General Probability
Where could you go yesterday?
by prof. mes solzhenitsy on November 18th, 2011
| 2 people like this
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7 answers
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in Probability
A six question True/False exam was given. If you guessed on each question, what is the probability of getting a perfect score?
by Haylie_O on November 14th, 2011
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4 answers
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in Probability
A six question true/false exam was givin. How many ways could the exam be answered?
by Haylie_O on November 14th, 2011
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2 answers
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in Probability
What is the probability that neither Brian nor Beth check on a weekend?
by DJMinaya on November 13th, 2011
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one answer
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in Probability
What is SAFEST mode of transportation? 2 wheels? 3 wheels? 4 wheels? More?
by genericdust on October 14th, 2011
| 2 people like this
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6 answers
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in General Probability
poker probabilities - where am I going wrong in my calculations?
by Matt1969 on October 12th, 2011
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3 answers
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in Probability
How do you apply the conditional probability to this question? I am seriously lost on how to obtain the answer to this question.
by Daniel_C8893 on October 6th, 2011
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2 answers
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in Probability
Simple probability question-
by Random on September 26th, 2011
| 1 person likes this
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3 answers
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in Probability
what is the probability of both marksmen hitting the target if at least one marksman hit the target?
by msp132 on September 10th, 2011
| 3 people like this
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10 answers
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in General Probability
How many people have to be in a room for a 50:50 probability of two of them having the same birthday? and why?
by Ombliss22 on September 3rd, 2011
| 2 people like this
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3 answers
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in Probability
I draw 6 balls from a 183-ball urn. All are red. What is the probability that all 183 balls are red?
by purplecows on August 12th, 2011
| 2 people like this
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4 answers
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in Probability
How would you find the average x of a Gaussian distribution described by p(x) = A.e^(-h(x-b)^2) from -infinity to infinity?
by Captain4876 on July 20th, 2011
| 1 person likes this
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2 answers
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in Probability
whats the statistic probability of ending up alone?
by Anonymous on July 2nd, 2011
| 3 people like this
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8 answers
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in Probability
what is the probability of drawing a jack from
a deck of cards
by manda2525 on June 17th, 2011
| 2 people like this
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3 answers
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in Probability
if a die is rolled 5 times, what is the probability that exactly 2 faces with 4 on them will result? please explain! :) Thanks in advance!
by Rustam_A on June 10th, 2011
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2 answers
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in General Probability
Probability and Statistics: Can you explain 'clumping'?
by Marky Mark on May 11th, 2011
| 3 people like this
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3 answers
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in Probability
If the probablity of a tennis player will serve an ace is 0.2, what is the probablity that she will serve three aces out of five serves?
by welchsamuelp on May 9th, 2011
| 1 person likes this
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3 answers
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in General Probability
In probability, how many times must I throw a 4-sided dice until I see every number?
by vregimbald on May 9th, 2011
| 2 people like this
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3 answers
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in General Probability
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