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Author Question: What is the required sample size to be 95% confident that the observed average time is within 2% of ... (Read 250 times) |
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.