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SAT&ACT Math
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OpenStudy (anonymous):
For a daily airline flight between two cities, the number of pieces of checked luggage has a mean of 380 and a standard deviation of 20. 19. On what percent of the flights would you expect from 340 to 420 pieces of checked luggage? a. 34% b. 47.5% c. 68% d. 95%
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OpenStudy (anwaarullah):
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