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Let X be the amount of premium gasoline (in 1000 gallons) that a service station has in its tanks at the beginning of a day, and Y the amount that the service station sells during that day. If the joint density of X and Y is given byf (x, y) = 1/200, for 0 <y <x <20, use the distribution function techniques to find the probability density of the amount that the service station has left in its tanks at the end of the day
assume that a sample is drawn and za2 1.65 and s 35. answer the following questionsa if the maximum error of estimate
the u.s. post office is interested in estimating the mean weight of packages shipped using the overnight service. they
according to a recent research report the average monthly household mobile phone bill is 73. suppose monthly household
Describe the shape of the distribution? what proportion of the players had no hits? how many players had 4 or fewer hits? what percentage of the players had one or fewer hits?
questiondo problem at the end of the text book.nbsp there are two sets of test scores titled part 1 and part 2.nbsp the
a mobile phone has an advertised life of 30000 hours. a sample of 50 phones had a life of 28500 hours with a standard
Demostate the use of appropriate tools for converting data into meaningful information and select, defend and use appropriate statistical tools for analysis of data and interpretation.
The northern and southern halves of the state
From Company B, 850 stereos are purchased and 6% are found to be defective. Given that a stereo is defective, find the probability that it came from Company A.
In a study, results were presented for a sample of 63 men who were asked to report their actual weight and their ideal weight. The mean difference between actual and ideal weight was 2.48 pounds
the variance of a sample of 81 observations equals 64. the standard deviation of the sample equalschoose one answer.a.
Is there sufficient evidence to indicate that the mean annual percentage turnover for U.S. plants exceeds the corresponding mean percentage for Japanese plants?
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