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Author Question: The data below are the number of absences and the final grades of 9 randomly selected students in an ... (Read 64 times) |
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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The familiar sounds of your heart are made by the heart's valves as they open and close.