5,395 Answered Questions for the topic probability

Probability

06/01/20

A number is chosen at random from 1 to 10. Find the probability of not selecting a multiple of 2

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Probability

06/01/20

Please help out
A recent study that the annual cost of maintaining a building in Accra averages 200 cedis with a variance of 260 cedis.If a tax of 30 % is introduced on all items associated with the maintenance of... more
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Probability

06/01/20

Please help me with this question
The mean number of errors due to a bug occurring in a minute is 0.0001.What is the probability that no error will occur in 20 minutes.
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Probability

06/01/20

Please I need help
Suppose that at a busy traffic junction, the probability p of an individual car having an accident is 0.0001.During a certain part of the day, 100 cars pass through the junction. What is the... more
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Probability

06/01/20

What is the probability of spinning a yellow or green, (in a color wheel of 8 total colors), then rolling a 4 on a single die?
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Probability Math Precalculus

05/31/20

The following probability question.
A school committee is to consist of 3 teachers and 3 parents, who are chosen randomly from the 20 teachers and 100 parents involved. If half the teachers and 80 parents are women, what is... more
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Probability

05/31/20

Probability Lottery Question
The Probability of a $1 winner in a particular state lottery is 1 in 8, the probability of a $5 winner is 1 in 100, and the probability of a $25 winner is 1 in 800. a) What is the probability of... more
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Probability

05/31/20

Please answer help me answer this question!

What is the probability of winning a 1st or 2nd prize of a 5/43 lottery?
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Probability

05/31/20

You order 10 burritos to go from a Mexican restaurant, 4 with hot peppers, and 6 without. However, the restaurant forgot to label them.

If you pick three burritos at random, find the probability that at least one has hot peppers.
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Probability

05/31/20

If you flip a fair coin 7 times, what is the probability that you will get exactly 4 tails?
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05/31/20

What is the difference between the Beta and Gamma distribution?
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Probability

05/31/20

A fridge contains 8 oranges, 8 apples and 8 pears. You randomly select two fruits one after another. What is the probability of selecting two different kinds of fruit in a row?

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Probability

05/31/20

A local union has ten members, four of whom are men. Three of the members are chosen by a lottery to represent the union on a bargaining council. Find the probability of each event.

a) Two women and one man are chosenb) At least one man is chosen
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Probability

05/31/20

Expected Value Question

A player pays $4 to play the following game: He rolls a die and receives $6 if he tosses and a 5 and $2 for anything else. Find the player’s expected net winnings for the game. Is the game fair? If... more
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Probability

05/31/20

Expected Value Question

A business man evaluated a proposed venture. He estimated that the probability of making a profit of $9000 is 0.2; the probability of making $5000 is 0.4; the probability of breaking even is 0.3;... more
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Probability

05/31/20

Expected Value Question

In a fast food store’s lucky number contest, 25% of the customers win $1, 10% win $10, 4% win $20 and 1% win $50. Find the expected winnings of a customer.
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Probability

05/31/20

Expected Value Question
A box contains 4 red and 6 green balls. Two balls are drawn. You receive $10 if both are red and you pay $1 otherwise. What are your expected earnings?
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Probability

05/31/20

The next test will consist of five questions.

Each question will be multiple choice, with 4 possible solutions listed for each question. What is the probability of an individual correctly answering every question by guessing?
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Probability

05/31/20

Two marbles are drawn without replacement from a box with 3 white, 2 green, and 1 blue marble. Find the probability
a) that both marbles are white?b) that you draw a green and a white marble?
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Probability Math Statistics Logic

05/31/20

Very difficult probability problem More help would be appreciated! - What is the probability that at least one attendee is on the call with everyone else?
One Friday morning, suppose everyone in the U.S. (about 330 million people) joins a single Zoom meeting between 8 a.m. and 9 a.m. This being a virtual meeting, many people will join late and leave... more
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Probability

05/30/20

Greg has a .78 chance of making par on each hole of golf that he plays. Today he plans to play just three holes. Find the probability of each event. Round answers to three significant figures.
a) He makes par on all three holes.b) He makes par of exactly two of the three holes. c) He makes par on at least one of the three holes. d) He makes par on the first and third holes but not the... more
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Probability

05/30/20

How many five card poker hands consisting of the same suit are possible?
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Probability

05/30/20

Telephone area codes are three-digit numbers of the form XXX.

a) Originally, the first and third digits were neither 0 or 1 and the second digit was always a 0 or 1. How many three-digit numbers of this type are possible?b) Over time, the restrictions listed... more
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Probability

05/28/20

Question on lightbulb probability

Sorry I’m not sure what kind of math this is I’m confused A box contains 9 good light bulbs and 3 defective bulbs. Find the probability that a random sample of 4 bulbs contains exactly 1 defective... more
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Probability

05/28/20

Probability Dice Question
Alice is playing a game in which she will roll 4 6-sided dice at the same time. She gets 5 points for each die that shows an even result. Let x represent the total number of points awarded on any... more
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