5,405 Answered Questions for the topic probability
Probability
05/30/21
Please help me this probability question
A grocery store is sponsoring a sale promotion where the cashier give away one of letters A, E ,L,S ,U ,V for each purchase. If a customer collects all six letters he gets 10 dolar worth for...
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05/30/21
For a Geometric distribution with parameter p = 1/3 ,then the mean and variance are given by
05/30/21
If a random variable X follows exponential distribution with parameter λ = 2 ,then its probability density function is given by
choose the correct answera. f (x) 2e2x , x 0 b. f (x) 12 e 12 x , x 0 c. f (x) 2e2x , x 0 d. f (x) 12 e 12 x , x 0
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Probability Statistics
05/28/21
A coach has 36 seats. 85% of people show up for their journey. You have been hired by a coach company to recommend how many tickets they sell.
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05/28/21
In a survey of 250 people, 46% said that they like football, 64% said that they like baseball, and 82% said that they liked either football or baseball.
How many people in this group like football and baseball?
100
65
28
70
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Probability Statistics
05/28/21
determine the area between Z=0.92 and Z=1.1
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05/28/21
PLEASE I NEED HELP
According to a survey, about 45% of people ages 18 and older in a city have a dog. You ask 6 randomly chosen people (ages 18 and older) whether they have a dog. What is the probability that at most...
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05/28/21
What is the probability that at most 4 people have a dog? Round your answer to the nearest hundredth.
According to a survey, about 45% of people ages 18 and older in a city have a dog. You ask 6 randomly chosen people (ages 18 and older) whether they have a dog.
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05/27/21
Find the probability income
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...
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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...
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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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05/27/21
Probability basketball
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...
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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...
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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...
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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...
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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...
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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...
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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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