5,341 Answered Questions for the topic probability

Probability Discrete Math

07/13/20

What is the probability that all three are queens?
Three cards are drawn in succession from a standard 52 card playing deck without replacement. What is the probability that all three are queens?
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Probability Discrete Math

07/13/20

what is the probability that the applicant speaks French or German?
Of 78 job applicants to the United Nations, 31 speak French, 41 speak German and 9 speak French and German. If a job applicant is chosen at random, what is the probability that the applicant speaks... more
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Probability Expected Value

07/13/20

an individual purchase dozen of eggs. there is a 50% chance that all the eggs carried on any one trip will be broken during the trip. The individual consider two strategies:
strategy 1: take 12 eggs in one tripstrategy 2: take two trips with 6 eggs in each tripWhat is the expected value in each two cases?
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Probability Statistics Finite Math

07/13/20

Finite Math: Probability & Percentages
Wonder Widgets Inc produces  Midget Widgets (MW).. Their data shows that 2% of the output is defective. A sample of 25 MWs is taken.(a) What is the probability that exactly two of this sample are... more
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Probability Statistics Finite Math

07/13/20

Finite Math: Finding Probability & Percentages
Wonder Widgets Inc. has three factories producing the Wham Wonder Widget (WWW). Last year, factory A produced 60 % of all WWW, factory B produced 30% of all WWW, and factory C produced the... more
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Probability Math Statistics

07/09/20

Breaking a stick into 3 pieces
Assume that you are breaking a stick into 3 pieces by uniformly and independently selecting two break points 𝑋 and 𝑌. If we denote the event that these pieces form a triangle by T and lengths of... more
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07/09/20

Biostatistics/ Probability
Suppose that it is known that a fraction 0.001 of the people in a town have tuberculosis (TB). A TB test is available. The sensitivity of a given test is the probability of correctly diagnosing a... more
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Probability Math Statistics

07/09/20

Confidence interval for population proportion
Is it possible that a confidence interval for population proportion will contain values less than 0 or greater than 1.If yes, please provide an example.If no, please explain why.
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Probability

07/08/20

Standard deviation of return on investment average probability

in current year companies have an average return on investment of 12.8% and standard deviation of return is 3.2%. Average return is normally distributed. What is the probability that a random... more
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Probability

07/08/20

Pencil combinations
There are 22 red pencils, 13 green, 12 yellow and 15 blue. If they are evenly distrubted into groups of 3 with different colors, how many groups will you have?
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Probability Finite Math

07/08/20

Conditional Probability & Independence
Let E and F be disjoint events with P(E) = .2 and P(F) = .3. (a) Find P(E ᴜ F). (b) Find P(E ∩ F).
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Probability Finite Math

07/08/20

Conditional Probability & Independence
Let C and D be independent events with P(C) = .2 and P(D) = .3. (a) Find P(C ᴜ D). (b) Find P(C ∩ D).
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Probability Finite Math

07/08/20

Conditional Probability & Independence
Let E and F be events with P(E) = .4, P(F) = .8, and P(E | F) = .375. What is P(E ∩ F) ?
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Probability Geometry

07/08/20

A coin of radius 1 cm is tossed onto a plane surface that has been tesselated by right triangles whose sides are 8 cm, 15 cm, and 17 cm long. Find the probability that the coin lands within a triangle
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Probability

07/06/20

Finite: Probability
A lot contains 120 parts of which 40 are defective and 80 are good. A sample of three different parts is selected at random. (a) What is the probability that all of the parts selected are good? (b)... more
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Probability

07/06/20

Finite: Probability
A coin is tossed three times. What is the probability that a "heads" came up at least two times?
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Probability

07/06/20

Finite: Probability
A jar has 8 Red, 11 White and 1 Blue marble. A marble is selected at random, its color noted and the marble is replaced. A second marble is selected from the 20 marbles (a) What is the probability... more
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Probability

07/06/20

Finite: Probability
A hat has 5 slips of paper numbered 1, 2, 3, 4, 5. A slip of paper is selected at random and its number noted and the slip is not replaced. A second slip of paper is selected at random. (a) What is... more
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Probability

07/06/20

Card Probability

find the probability of drawing a king and then a queen (without replacement) from a standard deck of cards
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Probability Math

07/06/20

probability problem

There is a bag with 3 yellow marbles 2 blue marbles and 1 green marble. The marbles are shooken up. I pull out 2 marbles one at a time. what is the probability I pick not green then blue. please... more
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Probability Math

07/06/20

probability problem
If you toss a coin 3 times what is the probability you will get 2 heads
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Probability Math

07/06/20

probability problem
Can you please help with this question?Tiffany and Emily are playing a game of flipping coins. Tiffany says I bet when I flip three coins I will get at least 2 heads. Emily thinks not. What is the... more
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Probability

07/06/20

tough probability question, please help
three-fifth of balls from bag A, all the white balls from bag B and one-third of balls form bag c are placed in a new bag d. If 4 balls are picked in random, what is the possibility of three of... more
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Probability Math

07/06/20

If each class is used once per schedule, how many class schedules for next year are possible? 
You are choosing your classes for the upcoming school year.Your schedule consists of 8 classperiods. You have chosen classes A through Hfor next year. Each class is taught during (a) specific... more
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Probability Statistics

07/04/20

If the AQL=0.02, LQL=0.15, alpha=0.1, and beta=0.2 in an acceptance sampling plan for a company, What is the best approximate value of sample size n and acceptance number c
If the AQL=0.02, LQL=0.15, alpha=0.1, and beta=0.2 in an acceptance sampling plan for a company, What is the best approximate value of sample size n and acceptance number c
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