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A chi-square test of homogeneity (independence) of counts in a contingency table tests whether counts are consistent(proportional) with the row and column marginal totals.
Statistics and Probability, Statistics
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A production system has two spares of a critical component that have average uptime 1/lamba = 1 month. Find the probability that the 3 components (the operating one and the two spares) will last more than 6 months. Assum ...
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