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A-carrier-based-on-its-anual-records-notes-that-its-trucks-cover-50000-km-with-a-normal-distribution-with-a-detour-of-12000-km-How-many-miles-can-be-traveled-at-least-80-of-trucks-




Question Number 17247 by adelson last updated on 02/Jul/17
A carrier based on its anual records notes that its trucks cover 50000  km with a normal distribution with a detour of 12000 km.  How many miles can be traveled at least 80% of trucks ?
$${A}\:{carrier}\:{based}\:{on}\:{its}\:{anual}\:{records}\:{notes}\:{that}\:{its}\:{trucks}\:{cover}\:\mathrm{50000} \\ $$$${km}\:{with}\:{a}\:{normal}\:{distribution}\:{with}\:{a}\:{detour}\:{of}\:\mathrm{12000}\:{km}. \\ $$$${How}\:{many}\:{miles}\:{can}\:{be}\:{traveled}\:{at}\:{least}\:\mathrm{80\%}\:{of}\:{trucks}\:? \\ $$

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