5,341 Answered Questions for the topic probability

02/24/23

Buisiness Statistics - Probability
The speed with which utility companies can resolve problems is very important. GTC, the Georgetown Telephone Company, reports it can resolve customer problems the same day they are reported in 70%... more
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02/24/23

Business Statistics - Probability Distribution
Industry standards suggest that 7% of new vehicles require warranty service within the first year. Jones Nissan in Sumter, South Carolina, sold 9 Nissans yesterday. (Round your mean answer to 2... more
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Probability

02/24/23

The probability that a random American has type ab blood
O 46% A 43% B 9% AB 2%
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Probability Math Statistics

02/23/23

A state license plate consists of 1 letter followed by 5 digits.
How many different license plates can be made? If no digit could be repeated, how many possible license plates would there be? A witness to a crime saw the first letter and first three digits... more
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Probability

02/17/23

Probability sat
For some particular website, the password must start with A or B there must be 5 more characters, and each of the characters may be a numeric digit or letter of the alphabet how many diffrent... more
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Probability

02/16/23

In a family of 5 children what is the probability of having one boy and then 4 girls in that order. Exclude multiple births and assume all outcomes are equal

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Probability

02/15/23

Quiz confidence interval for population mean
Find the critical value tα2 needed to construct a confidence interval of the given level with the given sample size. Round the answer to at least three decimal places.Level 95% sample... more
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Probability

02/15/23

Help!!! Confidence intervals

A sample of size n=78  is drawn from a normal population whose standard deviation is =σ6.2 The sample mean is x= 39.06. Construct an 80% confidence interval for μ.?< u <?
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Probability

02/15/23

Help confidence interval

A sample of size n= 99  is drawn from a population whose standard deviation is =σ 38. Find the margin of error for a 95% confidence interval for μ. Round the answer to at least three decimal places.
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Probability

02/15/23

probability question
Given two fair 6 sided die rolled at the same time. What is the probability of getting a double?
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Probability

02/15/23

Probability question

If one event has an 80% of occuring. Whats the probability of that event occuring if repeated 2,5,10 times. In other words if 5 events all with 80% probability of occuring ran simultaneously what... more
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Probability Statistics

02/13/23

z scores / probability / stats
assume that the scores are normally distributed with a mean of zero and a standard deviation of one. A) if p(z<a) = .9599, find a. B) if P(z>b) = .9772, find b. C) if P(z>c) = .0668, find c
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Probability Statistics

02/13/23

statistics probability
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15.A) A person is considered intellectually very superior if his or her IQ score exceeds 132, what percentage of... more
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Probability Statistics

02/13/23

in description .
assume that human body temperatures are normally distributed with a population mean of 98.6 in standard deviation of .62°F. The city hospital uses 100.4°F as the lowest temperature considered to be... more
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Probability

02/13/23

Probability and distribution
Consider a spinner where 1/3 of the area is red, 1/4 is blue, 1/3 is yellow, and 1/12 is green. Let X be the color where the pointer is after spinner once.1. If you spin once, what is the... more
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Probability Math Mathematica

02/13/23

Dice Probability help
What is the probability that in 10 casts of a fair die we get number six more than once?Does this problem use binomial distribution? If it doesn't then what does it use? Could it be explained please?
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Probability Math Mathematica

02/13/23

Cards Probability help
In the game of poker, five cards are dealt. Recall the regular deck of cards has 13 denominations and 4 suits.What is the probability of getting 5 consecutive cards (i.e., from 2,3,4,5,6, all the... more
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Probability Statistics

02/12/23

Statistics and probability

How many different four-letter passwords can be created for a software access if no letter can be used more than once?
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Probability

02/12/23

Suppose that an urn contains 5 green marbles, 12 yellow marbles, and 3 white marbles. If one marble is selected, determine the probability that is green.
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Probability

02/10/23

In a large population, 56 % of the people have been vaccinated. If 5 people are randomly selected, what is the probability that AT LEAST ONE of them has been vaccinated?
In a large population, 56 % of the people have been vaccinated. If 5 people are randomly selected, what is the probability that AT LEAST ONE of them has been vaccinated?
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Probability

02/10/23

what is the probability

Of all the soft drink consumers in a particular sales region, 30% prefer Brand A and 70% prefer Brand B. Of all these soft drink consumers, 20% prefer Brand A and are female, and 40% prefer Brand B... more
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Probability Statistics

02/09/23

Probability and net profit
Suppose you are playing a game. The random variable, Y, represents your net profit in dollars. The probability distribution of Y is as follows. (Round your answers to 4 decimal places, if... more
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Probability

02/08/23

A lottery has 46 numbers. How many ways can six numbers be drawn if the numbers are not repeated? There are Answer ways the number can be drawn.
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Probability Statistics

02/08/23

What would the height need to be for this curve to be a density curve?1/8 or 1/12, 0r 1/20, or 1
line starts from 8 to -----------------------------20
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Probability Statistics

02/08/23

Please help me solve this in order for me to understand!
In a certain breed of cattle, the length of gestation has a mean of 284 days and a standard deviation of 5.5 days. Thirty-four percent of gestation periods are longer than how many days, rounded to... more
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