Business Finance Homework Help

Can you help me understand this Data Analytics question?

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#3 A web server hosting company advertises 99.999 percent guaranteed network uptime. How many network servers are needed for 92% reliability? _______; for 85% re______________

#4 The fracture strength of a certain type of glass has a mean of 512 MPa and Standard Deviation of 12 MPa. what is the probability the glass will break at less than 512 MPa____________ 532 MPa __________ and 539 MPa_________.#5 The length of a brook trout has a mean of 12.1 inches and a standard deviation of 1.2 inches. What minimum size limit would allow people t0 keep 74 percent of the trout they catch? _____________

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#9 The probability that a 2011 Audi A8 will be stolen is 0.0055. Find the odds against the 2011 Audi being stolen ___________ to _______________.

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#15 2% of all persons taking a breathalyzer test pass the test (blood alcohol under .08 percent). If 500 tests are given What is the number who will pass? __________ What is the approximate Poisson probability that 5 or fewer will pass the test? _____________