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According to the histogram, do the college students in this study tend to get 7 or more hours of sleep per night on the weekends or fewer than 7 hours of sleep? Explain.


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   x  x    n  |   | (   ) π DNE
   x    (   ) π DNE
( ) ( ] [ ) [ ] —∞ DNE
< > or All Real Numbers DNE
log logn ln n  | | e 
sin cos tan arcsin arccos arctan  
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