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    String of christmas tree lights has 10 bulbs connected in series

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    Q1: A string of christmas tree lights has 10 bulbs connected in series. The identical bulbs are assumed to have independant life times with a constant failure rate lamda. Find lamda such that the probability that the string survives 3 weeks is at least 99%.

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    https://brainmass.com/statistics/probability/string-christmas-tree-lights-bulbs-connected-series-341904

    Solution Summary

    The expert finds the lamda in a string of lights connected in series.

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