Calculus and Above

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1. Finding Probabilities in Normal Distributions Let X
1. Finding Probabilities in Normal DistributionsLet X represent the full height of certain species of tree. Assume that X is normally distributed with a mean of 240 feet and a standard deviation of 38… read more
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Finding Probabilities in Uniform Distributions The
Finding Probabilities in Uniform DistributionsThe probability density of a random variable X is given in the figure below. The random variable is uniformly distributed between 0 and 2.From this densit… read more
Kofi
PhD in Statistics
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Finding Probabilities in Uniform Distributions The
Finding Probabilities in Uniform DistributionsThe probability density of a random variable X is given in the figure below. The random variable is uniformly distributed between 0 and 2.From this densit… read more
Kofi
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Finding the Mean, Variance, and Standard Deviation of a
Finding the Mean, Variance, and Standard Deviation of a Uniform Distribution Given the probability density function f)x) = 1/6 over the interval [3,9], find the expected value, the mean, the variance … read more
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The time it takes me to wash the dishes is uniformly
The time it takes me to wash the dishes is uniformly distributed between 7 minutes and 13 minutes.What is the probability that washing dishes tonight will take me between 9 and 11 minutes?Give your an… read more
Kofi
PhD in Statistics
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The time it takes me to wash the dishes is uniformly
The time it takes me to wash the dishes is uniformly distributed between 7 minutes and 13 minutes.What is the probability that washing dishes tonight will take me between 9 and 11 minutes?Give your an… read more
Kofi
PhD in Statistics
Ph.D.
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The lengths of a professor's classes has a continuous
The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0 min. If one such class is randomly selected, find the probability that the class length is less tha… read more
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Master's Degree
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A statistics professor plans classes so carefully that the
A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 45.0 and 55.0 minutes. Find the probability that a given class period runs between 5… read more
Kofi
PhD in Statistics
Ph.D.
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A statistics professor plans classes so carefully that the
A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 45.0 and 55.0 minutes. Find the probability that a given class period runs between 5… read more
Kofi
PhD in Statistics
Ph.D.
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The waiting times between a subway departure schedule and
The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed between 0 and 7 minutes. Find the probability that a randomly selected passenger has a wa… read more
Kofi
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For the problems that require a written response, please use
For the problems that require a written response, please use proper English and complete sentences. Your definitions and explanations should be explicit and meaningful from a statistical viewpoint. Wh… read more
Ray Atkinson
Bachelor's Degree
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1. Five males with a particular genetic disorder have one child
1. Five males with a particular genetic disorder have one child each. The random variable x is the number of children among the five who inherit the genetic disorder. Determine whether the table descr… read more
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Bachelor's Degree
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What is the probability that a pipe is between 10.22ft and 10.35ft
A manufacturer has designed a process to produce pipes that are 10 feet long. The distribution of the pipe length, however, is actually Uniform on the interval 10 feet to 10.55 feet. Assume that the l… read more
Stevewh
Teacher
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Trainees Must Complete A Specific Task In Less Than
Trainees must complete a specific task in less than 2 minutes. Consider the probability density function below for the time it takes a trainee to complete the task. f(x) = 0.92 - 0.42x 0 < x < 2… read more
Sandhya
Master's Degree
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Let X represent the time it takes from when someone enters
Let X represent the time it takes from when someone enters the line for a roller coaster until they exit on the other side. Consider the probability model defined by the cumulative distribution functi… read more
Ryan
Bachelor's Degree
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Exam scores were normal in MIS 200. Jason's exam score was
Exam scores were normal in MIS 200. Jason's exam score was 1.41 standard deviations above the mean. What percentile is he in? A.68th B.84th C.75th D.92nd To convert a normally distributed variable X i… read more
Osbert12
Master's Degree
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a statistic professor plans classeds so carefully that the
a statistic professor plans classeds so carefully that the lengths of her classes are uniformly distributed between 47.0 and 52.0 minutes. Find the probability that a given class period runs greater t… read more
Scott
Master's Degree
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susan ; The assembly time for a product is uniformly distributed
susan ; The assembly time for a product is uniformly distributed between 6 to 10 minutes. Refer to Exhibit 6-1. The probability density function has what value in the interval between 6 and 10? Select… read more
Sandhya
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