The first quartile (Q 1) is defined as the middle number between the smallest number and the median of the data set.The second quartile (Q 2) is the median of the data. Use the median to divide the ordered data set into two halves. 2  If the median is a datum (as opposed to being the mean of the middle two data), include the median in both halves. 3  The lower quartile value is the median of the lower half of the data.
Many people associate shaky hands with Parkinsonâs disease, but the most common cause of shaking hands is actually essential tremor. Essential tremor is the most common neurologic disorder affecting adults, but itâs not well understood.
One possible cause of numbness in the finger tips is lack of blood flow. This can be caused by something called Raynaud's phenomenon. Raynaud's phenomenon is a symptom that is seen in some disease such as lupus where blood flow doesn't reach the tips of the fingers, especially in cold weather. Another common cause of numbness in the finger tips is uncontrolled diabetes. High blood sugars caused by diabetes damage nerves in the finger tips and toes. If you also have nerve problems in your feet, then this could be an explanation. I suggest that you schedule an appointment with your primary care physician.