5,385 Answered Questions for the topic probability

Probability

05/16/22

Probability word problems
A school survey reported that 80% of students have cell phones, 45% have part time jobs, and 30% have both a cell phone and a part time job. If a student is chosen at random, what is the... more
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Probability Math

05/15/22

Combination, permutation

Four letter are to be selected from the word COMBINATION. Find the number of ways of choosing the letter if the letter N must be selected.There are two O, two I, two N.. Please explain how the... more
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Probability

05/15/22

Five hundred high school students were surveyed and asked their favorite core subject. The following table displays the results.
English SocialStudies Math Science Total9th Grade 20 30 10 20 80 10th Grade 25 40 30 30 12511th Grade 15 20 40 25 10012th... more
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Probability

05/14/22

Probability help
The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For these questions, assume these values are not changing from year to year, and that the population of... more
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Probability

05/13/22

Are ordering a pizza and going to bed late independent events?
Let Events A & B be described as follows:  P(A) = ordering a pizza P(B) = going to bed late  The probability that a person will order a pizza is 48% and the probability of going to bed late is... more
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Probability Risk Management

05/13/22

The first prize for a raffle is P500,000 (0.001) and the second prize is P250,000 (0.003). What is a fair price to pay for a single ticket in this raffle?
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Probability Mathematics

05/10/22

Find the probability that a number less than 4 on a 12 sided dice turns up on exactly 3 out of 6 tosses
"Suppose that a die is made by marking the faces of a dodecahedron with the numbers 1-12. What is the probability that on exactly 3 out of 6 tosses a number less than 4 shows up?
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Probability

05/10/22

What is the answer?
At a local college, 51 of the male students are smokers and 459 are non-smokers. Of the female students, 60are smokers and 540 are non-smokers. A male student and a female student from the college... more
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Probability

05/10/22

What's the probability?
At a local college, 51 of the male students are smokers and 459 are non-smokers. Of the female students, 60are smokers and 540 are non-smokers. A male student and a female student from the college... more
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Probability Statistics

05/10/22

How many ways can this be done?
Three research departments have 10, 6, and 8 members, respectively. Each department is to select a delegate and an alternate to represent the department at a conference. In how many ways can this... more
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Probability Statistics

05/10/22

In how many ways?
A university student is selecting courses for his next semester. He can choose from 3 humanities courses and 10science courses. In how many ways can he choose 7courses if fewer than 2 must be... more
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Probability

05/10/22

34% of people have a virus. 11 are picked at random. Find probability 3 are carriers
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Probability Statistics

05/09/22

The mean clotting time of blood is 7.45 seconds with a standard deviation of 3.6 seconds. What is the probability that an individual’s clotting time will be less than 2 seconds or greater than 11?
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05/08/22

in a class of students, the following data table summarizes how many students playing instrument or a sport. What is the probability that student plays an instrument given that they play a sport?
play an instrument and a sport: 2play an instrument but does not play a sport: 8does not play an instrument but plays a sport: 10does not play an instrument or a sport: 4
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Probability

05/05/22

Probability Questions

This is a question that I am trying to help my niece with:you want a new 2- door or 4- door car in black, blue or red. you may or may not get a CD player. how many different cars are possible
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Probability Word Problem

05/05/22

The question is in the description.
There are cards in a box. Fifteen of these cards are red, the others are blue, and the rests are white cards. If the probability of drawing a blue card is 0.125 and the probability of drawing a... more
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Probability Word Problem

05/05/22

The question is in the description.
There are cards in a box. Fifteen of these cards are red, the others are blue, and the rests are white cards. If the probability of drawing a blue card is 0.125 and the probability of drawing a... more
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Probability

05/04/22

A bag has 9 red marbles, 6 blue marbles, and 5 yellow marbles. What is the probability of NOT choosing a yellow marble from the bag?

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Probability

05/04/22

There are small pieces of paper in a jar with one number written on each piece. The numbers are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,12 what is the probability of choosing a number greater than 4?
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Probability

05/04/22

A bag has 9 red marbles, 6 blue marbles, and 5 yellow marbles. What is the probability of pulling a blue marble from the bag?

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Probability

05/04/22

The question is in the description.
There are cards in a box. Fifteen of these cards are red, the others are blue, and the rests are white cards. If the probability of drawing a blue card is 0.125 and the probability of drawing a... more
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Probability

05/04/22

There are blue, red, and green marbles in a jar. There are 7 blue marbles in the jar. The probability of getting a blue marble is 1/6 and the probability of green is 5/21.

a. How many marbles are there in the jar?b. How many green marbles are there in the jar? c. How many red marbles are there in the jar?
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Probability

05/04/22

There are red, blue, and black ball pens in a jar. There are 6 red ball pens. The probability of getting a red ball pen is 22.22% while the probability of getting a black ball pen is 40.74%.
a. How many ball pens are there in the jar?b. How many are black pens in the jar?c. How many are blue pens in the jar?
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Probability Math

05/03/22

Probability Math

You roll a 6-sided die. What is P(greater than 4 or factor of 35)?
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Probability Math

05/03/22

Probability Math

You roll a 6-sided die. What is P(greater than 4 or factor of 35)?
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