5,341 Answered Questions for the topic probability

Probability

08/20/20

Assistance on probability
A business has Brand A, Brand B and Brand C of the same product. Market research has shown that 43% of costumers that purchase this product will choose Brand A. An organization conducts a poll... more
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08/20/20

Data Management Probability Questions
1. The following letters are rearranged BROWN. What is the probability that the BRO are together and in this order2.Aliens landed on Costco to buy some groceries and donate blood. The American... more
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Probability

08/20/20

Find the indicated probability.

Find the indicated probability.Refer to the table which summarizes the results of testing for a certain disease. If one of the results is randomly selected, what is the probability that it is a... more
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Probability Statistics Mathematics

08/19/20

questions are in the description

Two standard dice are rolled. What is the probability that a sum less than 7 or is divisible by 3? Consider the following: The probability that any teacher has a car is 0.72. The probability that... more
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Probability Statistics Quant

08/19/20

Which test to use?
HI,I am fairly new to stats and need some help. I can't seem to determine which test to use in a certain question. As soon as I see unknown questions i dont know which test to use. T test, chi... more
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Probability

08/18/20

Solve the following PROBABILITY question;
1000 students undertook a field trip to a Malaria prone area, and on their return were subjected to Malaria testing. The following information was obtained: 39% of the group are Male students and... more
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Probability

08/18/20

Monica is making a platter of four types of cheese and four types of crackers. She has seven different cheeses and six different crackers. In how many ways can Monica make the platter?

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Probability

08/18/20

Probability: What is the probability that at least 8 families adopt their puppy from a shelter?
30% of puppies come from rescue shelters. Ten random families were surveyed about where they recently adopted their puppy from.
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Probability

08/18/20

What type of distribution for epsilon? can I generate observations for epsilon ?
$X$ has zero truncated poission distribution ($\lambda$)then pmf is $f(x)=\frac{\lambda^x}{(e^\lambda-1)x!}$and the probability generating function is $\phi_X(s)=\frac{e^{\lambda... more
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Probability Math Algebra 2

08/17/20

Permutations and coin flip probability questions
Q:  An elf, a dwarf, a hobbit, a wizard, and a man are sitting in a line. How many different ways can they sit if the elf and the dwarf insist on sitting next to each other? For this one, I think I... more
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Probability

08/16/20

Problem Solving

A national Survey of 1509 respondents reached on land lines and cell phones found that the percentage of adults who favor legalized abortion has dropped from 51%a year ago to 45%. The study claimed... more
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08/16/20

PROBABILITY THEORY: Should I put the ball back?
In a distant past where party games are still allowed, a boring mathematician host presented two jars with the same appearance and tells you (another boring but very competitive mathematician):... more
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Probability Mathematics

08/15/20

Solving Math Problem
What If a patient is prescribed to receive 380 mg of dopamine how long should the infusion last?
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Probability

08/15/20

Solving A Mathematics Problems
What solution consisting of 323mg of dopamine in 34ml of solution is administered at rate of 10ml/Hr and what is the flow rate in mg of dopamine per hour?
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Probability Algebra 2

08/14/20

Probability of heart defect
kim has a 30% chance of having a child born w a heart defect for every pregnancy she has. She has always wanted to have 2 children. Using the random variable x, find the probability distribution of... more
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Probability Algebra 2

08/14/20

Card probability
find the probability of selecting two 10s when two cards are drawn without replacement from a standard deck of cards
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Probability Algebra 2

08/14/20

marble probability
find the probability of picking a red or yellow marble from a bag contaning 8 red, 4 green, and 2 yellow marbles
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Probability

08/13/20

Card Probability
probability of drawing a spade and then a red card from a standard deck of cards WITHOUT replacement
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Probability Algebra 2

08/13/20

Card Probability

probability of drawing a red card or a club from a standard deck of cards
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Probability

08/13/20

Could Anyone Help With This Math Question on Probability?

Four friends want to play a game. In order to decide who starts first, two proposals are made.Kristal proposes that they assign everyone a number and take turns rolling a six-sided die. The player... more
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Probability

08/13/20

Probability binomial distribution

According to census data, there are a total of 248.8 million households in India. Out of these households, approximately 17 million households in India have dogs as pets.Now, suppose that you... more
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Probability Math Algebra 2 Statistics

08/13/20

Challenging Prob/Stats questions I am stuck on
Q1: A history pop quiz has one question in which students are asked to arrange the following presidents in chronological order: Hayes, Taft, Polk, Taylor, Grant, and Pierce.After carefully reading... more
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Probability Statistics

08/11/20

The probability of getting a reading between 0.25°C and 1.00°C is
The probability of getting a reading between 0.25°C and 1.00°C is
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Probability Statistics

08/09/20

Central limit theorem question
Assume that height of 300 soldiers in army battlaion is normally distributed with mean 68 inches and std dev of 3. If 80 samples consisting of 25 soldiers each are taken what would be the mean ane... more
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Probability

08/09/20

What is the probability that the lead singer's voice will be fine at the band's next gig, which is 2 weeks from now?
there is a 4% chance that a band's lead singer's voice isnt working on any given day. This band has played 19 gigs so far this year, and at each of these the lead singer's voice has been fine. What... more
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