5,381 Answered Questions for the topic probability

Probability Statistics Economics

07/17/20

If you draw a card with a value of four or less from a standard deck of cards, I will pay you $7. If not, you pay me $6. (Aces are considered the highest card in the deck.)
Step 1 of 2 :  Find the expected value of the proposition. Round your answer to two decimal places. Losses must be expressed as negative values.
Follows • 1
Expert Answers •2
Probability Finite Math

07/16/20

Finite Math: Probability
A lot of 250 light bulbs contains 20 defective bulbs and 230 good bulbs. A sample of 4 different light bulbs is selected at random.(a) What is the probability that all 4 bulbs selected are good?(b)... more
Follows • 1
Expert Answers •1
Probability Finite Math

07/16/20

Finite Math: Probability
A container has 7 red marbles, 3 white marbles, and 5 blue marbles. A marble is selected at random from these 15 marbles, its color is noted and it is replaced. A second marble is selected from the... more
Follows • 1
Expert Answers •1
Probability Finite Math

07/16/20

Finite Math: Probability & Independence
Last year in Way-up-there Alaska voted for mayor with the following results: Democrat Republican Bull-Moose Party Male 12 22 21 Female 24 13 33 One of these voters is selected at random.(a)... more
Follows • 1
Expert Answers •1
Probability Finite Math

07/16/20

Finite Math: Probability
The House of Representatives consists of 435 members. They considered two bills. 325 members voted yes on bill A. 250 members voted yes on bill B. 170 members voted yes on both bills.(a) How many... more
Follows • 1
Expert Answers •1
Probability Finite Math

07/16/20

Finite Math: Probability
A container has nine marbles numbered 1, 2, 3, 4, 5, 6, 7, 8, 9. Two different marbles are selected at random from this container.(a) What is the probability that one of the marbles selected was... more
Follows • 1
Expert Answers •1
Probability Math Statistics

07/14/20

Sampling distribution

Suppose our population consists of the values (2, 3, 5, 7, 11, 13, 17), that is, our population is the first 7 prime numbers (one of each).a) If we take a simple random sample of size k, where k is... more
Follows • 1
Expert Answers •1
Probability Discrete Math

07/14/20

What is the probability that a student picked at random took Precalculus, given that she passed Calculus?

A college requires certain students to take Precalculus prior to taking Calculus. Thirty-five percent of students that eventually take Calculus take the Precalculus course. Sixty percent of those... more
Follows • 1
Expert Answers •1
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?
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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?
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •2

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
Follows • 1
Expert Answers •1
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.
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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?
Follows • 1
Expert Answers •1
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).
Follows • 2
Expert Answers •1
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).
Follows • 2
Expert Answers •1
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) ?
Follows • 2
Expert Answers •2
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •2
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?
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.