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A real number between 0 and l00 is randomly selected according to a uniform distribution and rounded off to the nearest integer.
For example, 36.5001 is rounded off to 37; √3 is rounded off to 2; and 69.49 is rounded off to 69.
Define a random variable to be X = number selected - nearest integer .
(a) What is the domain of this random variable?
(b) Determine the PDF for X .
(c) Determine the mean square value of X .
The manufacturer would like to establish inventory levels such that there is only a five percent chance of running out of stock. Where should the manufacturer set the inventory level?
What is the probability that 10 or more were male? What is the probability that 10 or more were female? What is the probability that fewer than 7 were female?
Determine the probability that a computer purchased from this retailer has neither a read-write CD nor a DVD drive - Determine the probability that a computer purchased from this retailer does not have a DVD drive.
A small New England college has a total of 400 students.The Math SAT is required for admission, and the mean score of all 400 students is 620. The population standard deviation is found to be 60. The formula for a 95% confidence interval yields th..
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What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? What percentage is unexplained?
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