Mathematics, 26.10.2019 04:43 crummar01
6.81 the length of time between breakdowns of an es- sential piece of equipment is important in the decision of the use of auxiliary equipment. an engineer thinks that the best model for time between breakdowns of a generator is the exponential distribution with a mean of 15 days. (a) if the generator has just broken down, what is the probability that it will break down in the next 21 days? (b) what is the probability that the generator will op- erate for 30 days without a breakdown?
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Mathematics, 21.06.2019 17:30
Which is the equation of a line perpendicular to the line with the equation 3x+4y=8
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Mathematics, 21.06.2019 19:30
Needmax recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 2
Mathematics, 22.06.2019 01:30
At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.
Answers: 2
6.81 the length of time between breakdowns of an es- sential piece of equipment is important in the...
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