- Grade 11 and 12 Mathematics (Moderator: geoffrey)
|
Author Question: The standard deviation of a standard normal distribution a. is always equal to zero. b. is always ... (Read 40 times) |
- Grade 11 and 12 Mathematics (Moderator: geoffrey)
Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.
Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.