5,385 Answered Questions for the topic probability

Probability Math Statistics

05/27/21

Find the probability
The per capita disposable income for residents of a U.S. city in a recent year is normally distributed, with a mean of approximately $44,000 and a standard deviation of about $2450. Use this... more
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Probability Math Statistics

05/27/21

Find the probability
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Probability Math Statistics

05/27/21

z-score and curve
 A. What is the mean and standard deviation for a z-score?  B. What is the total area under the curve of a normal distribution?
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Probability Math Statistics

05/27/21

Probability basketball

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Probability Math Statistics

05/27/21

Probability of typographical errors per page
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Probability Math Statistics

05/27/21

Probability of how many US citizens save money in medical care
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Probability Math Statistics

05/27/21

Probability distributions
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05/27/21

Discrete or continuous distribution
Determine whether each of the following would be a discrete or continuous distribution.
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Probability Math

05/27/21

Describe the probability of each given outcome using one of the phrases below:►Impossible ►Unlikely, ►Neither Likely nor Unlikely, ►Likely, ►Certain
Describe the probability of each given outcome using one of the phrases below:►Impossible ►Unlikely, ►Neither Likely nor Unlikely, ►Likely, ►Certain Part A: A bag contains 10 Snickers bars and... more
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Probability Math

05/27/21

The six sides of a number cube are labeled 1, 2, 3, 4, 5 and 6. You flip a coin and roll the number cube.

The question was too long for the title.The six sides of a number cube are labeled 1, 2, 3, 4, 5 and 6. You flip a coin and roll the number cube. What is the theoretical probability that the coin... more
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Probability

05/25/21

Statistics and probability
n a certain locality 1/3 of the locality is known to be using a particular brand of soap. In a survey sample of 10 households were allotted to each surveyor and 1000 surveyor were appointed. How... more
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Probability

05/25/21

The prior odds were a hundred-to-one against Voldemort surviving. What is the probability of Voldemort being alive??
Dumbledore is worried if Voldemort is still alive because he noticed a suspicious mark on a hand.If Voldemort dies, the mark continuous to exist with a 20% probability.On the other hand, if... more
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05/25/21

Find the probability: money
The monthly utility bills in a city are normally​ distributed, with a mean of ​$100 and a standard deviation of ​$16. Find the probability that a randomly selected utility bill is​ (a) less than... more
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05/25/21

Find the probability oh height

In a survey of a group of​ men, the heights in the​ 20-29 age group were normally​ distributed, with a mean of 69.2 inches and a standard deviation of 4.0 inches. A study participant is randomly... more
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05/25/21

Find probability with random variable
Assume the random variable x is normally distributed with mean μ=82 and standard deviation σ=4. Find the indicated probability.​P(71<x<74​)
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Probability Math Algebra 2 Statistics

05/24/21

PROBABILITY AREA CODES
A state may have to add a 9th area code soon. When that happens how many different phone numbers will be available in the state if the numbers CAN repeat. Remember that phone numbers have an area... more
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Probability Statistics Mathematics

05/24/21

Help me solve this question

Post boxes in London are randomly spaced out and on average five postboxes are found per square mile.(a) Determine the probability that on a certain square mile there will be(i) exactly seven post... more
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Probability

05/24/21

Probability Question

At a concert, there are 5 babies, 3 dogs, 7 cats, 8 adults, and 9 aliens in the audience. The headlining performer wants to get a group of 3 members from the audience on stage. What is the... more
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05/24/21

Question about average thickness, standard deviation and probability distribution
Each manufacturer of sliced bread has to choose how thin to slice their bread. It turns out that sliced bread in the US has an average thickness (μ) of 9.2mm, a standard deviation (σ) of 2.5mm, and... more
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Probability

05/24/21

Probability Question
On a multiple-choice examination with four choices for each question, a student either knows the answer to a question or marks it randomly. The probability that they know the answer for any problem... more
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Probability Statistics

05/24/21

Probability Question
If Lilly has a probability of a each day of having a surprise quiz, then in terms of a, what is the probability that Lilly has at least one quiz in a three day school week?
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Probability Algebra 2

05/24/21

Probability/Algebra 2 (PLEASE HELP)
James can attend either Irvine Valley College or Golden West College this summer for a class. If James attends Irvine Valley College, he is 70% likely to take Philosophy and 30% likely to take... more
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Probability Math Statistics

05/23/21

the probability of this?
What is the probability that a randomly chosen person has an IQ over 120?(IQ scores are normally distributed with a mean of 100 and standard deviation of 15).
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Probability Math Statistics

05/23/21

Probability question
what is the probability of getting 8 or more tails from 10 flips of an unfair coin that is biased to land on heads 60% of the time?
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Probability Math

05/23/21

If a random sample of size 16 is taken with replacement from the population 1, 1, 1, 2, 4, 5, 5 and 6, what is the mean, variance and standard deviation of the sampling distribution?
Find the following:* MEAN OF SAMPLING DISTRIBUTION* STANDARD DEVIATION OF THE SAMPLING DISTRIBUTION* VARIANCE OF THE SAMPLING DISTRIBUTION
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