5,341 Answered Questions for the topic probability

Probability Statistics

09/09/21

Probability question
A fair die is cast until a 6 appears. What is the probability that it must be cast more than five times?
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Probability Statistics

09/09/21

Probability question
the Smiths have two children, At least one of them is a boy. What is the probability that both children are boys?
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Probability Statistics

09/09/21

Probability question
Two players, A and B, alternately and independently flip a coin and the first player to obtain a head wins. Assume player A flips first(a) if the coin is fair, what is the probability that A... more
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Probability Statistics

09/09/21

Probability question
Two people each toss a fair coin n times, Find the probability that they will toss the same number of heads
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Probability

09/09/21

Probability question
Suppose I have three coins. Two are fair coins (they have a 50% chance of landing on heads and a 50% chance of landing on tails). One is a weighted coin that has a 75% chance of landing... more
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Probability Statistics

09/08/21

An urn contains 6 red marbles, 7 white marbles, and 6 blue marbles marbles. A child randomly selects three (without replacement) from the urn. Round to four decimal places.
An urn contains 6 red marbles, 7 white marbles, and 6 blue marbles marbles. A child randomly selects three (without replacement) from the urn. Round to four decimal places.1.) Find the probability... more
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Probability

09/08/21

Using a standard 52-card deck, find the following probabilities. Leave your answer as a reduced fraction.
Using a standard 52-card deck, find the following probabilities. Leave your answer as a reduced fraction.1.) If a card is randomly selected, what is the probability that the card is any one suit,... more
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Probability Statistics

09/08/21

probability statistics
Suppose a jar contains 13 red marbles and 36 blue marbles. If 2 marbles are randomly chosen from the jar at the same time, find the probability that both marbles are red. Round your answer to four... more
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Probability

09/08/21

A basket contains 4 green balls 3 black balls and two white balls what is the probability of picking a green ball and a white ball
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09/08/21

Normal distribution
A brisk walk at 5 miles per hour burns an average of 320 calories per hour. If the standard deviation of the distribution is 8 calories/hour, find the percentage of people who walk at 5 miles per... more
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09/07/21

Statistics and Probability pls help : (
An inventor created a machine where you can input a string of 4 letters and expect an output from it. If you input any of the letters S, C, or D, the probability that the output of the letter... more
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Probability

09/06/21

Collage Probability
Five cards are drawn randomly from a pack of 52 playing cards .(a) Find the probability that at most 2 Kings are drawn given that at least 1 King is drawn.(b) Find the probability that 3 kings and... more
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Probability

09/05/21

If Pr(A) =0.5 and Pr(B)=0.5. Which statement about Pr(A∩B) is true?
a) Pr(A∩B) >= 0.3b) Pr(A∩B) <= 0.3c) Pr(A∩B) = 0.5d) None of the options
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Probability Algebra 2

09/05/21

Probability Question
In poker, a 5-card hand is a flush when all five cards are of the same suit (hearts, diamonds, spades, or clubs). Note a standard deck of cards has 52 cards of 4 suits with each suit having cards... more
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Probability Math Algebra 1

09/05/21

Find each probability.
A bag of candy contains 3 lollipops, 8 peanut butter cups, and 4 chocolate bars. A piece of candy is randomly drawn from the bag. Find each probability. P(peanut butter cup) P(lollipop or peanut... more
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Probability

09/04/21

Probability Question
In a particular city, 14 in 1.6 million people have been struck by lightning. What is the experimental probability of being struck by lightning in this city?
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Probability Math

09/03/21

Find the probability p
A man is dealt 4 spade cards from an ordinary pack of 52 cards. If he is given threemore cards, find the probability p that at least one of the additional cards is also a spade.
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Probability Bayesian

09/02/21

What is the chance the jam is toxic
A woman picks 7 apples in the forest, but unfortunately two of them are poisonous. Three apples are used in a pie, which turns out to be toxic. Another two are used in a jam. What is the chance... more
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Probability Math Statistics Help

09/01/21

pls help pls help probability
A math competition hosted by HOD has the following rules. Each team will be composed of four (4) people and each team will try to answer ten (10) math questions of the same difficulty. You are only... more
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Probability Math Math Statistics

09/01/21

Probability help help
Suppose a 50-sided die was tossed. Let B be the event that the number appearing on top of the die is divisible 5 and let C be the event that the number appearing on the top of the die has a... more
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Probability

09/01/21

Statistics and Probability
In a recent year, 8,090,845 male students and 1,841,009 female students were enrolled as undergraduates. Receiving aid were 64.3% of the male students and 69.9% of the female students. Of those... more
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Probability Math Statistics Help

09/01/21

Probability Question help help
Hannah is taking a 6-item examination. Let her score be denoted by the variable X. Each item is worth 5 points. The exam is graded under the right-minus-wrong rule, which means incorrect and blank... more
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Probability Math Statistics Statistics

09/01/21

Probability pls help : D
Hannah is taking a 6-item examination. Let her score be denoted by the variable X. Each item is worth 5 points. The exam is graded under the right-minus-wrong rule, which means incorrect and blank... more
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Probability Math Statistics

08/30/21

Probability of Rolling Two Dice

My friend and I are playing a game and the person that rolls the highest number on the dice wins the game. Both dice has 6 sides.Dice number 1 has the number 5 on two sides and the number 2 on four... more
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Probability

08/30/21

Stein–Chen identity for the Poisson
1-) Solve the following:a-) If X ∼ Pois(λ) and g is any function, show that :E [Xg(X)] = λ E [g(X + 1)] (This is called the Stein–Chen identity for the Poisson.) b-) Find the third moment E [X3 ]... more
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