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Author Question: A pollster can decrease a poll's margin of error by __________. a. increasing the sample size b. ... (Read 80 times) |
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.