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Terabear Terabear
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Posts: 297
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6 years ago
In one research study, the relationship between hours of sleep and the development of a cold when exposed to viruses was studied. The investigators found that those who got __________ hours of sleep were four times as likely to develop a cold as those who got at least __________ hours of sleep.
A) 6; 7
B) 7; 9
C) 9; 8
D) 8; 10
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cgara59cgara59
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Posts: 191
6 years ago
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