Windows Vista. Windows Task Manager has been updated in Windows Vista with new features, including: A Services tab to view and modify currently running Windows services and start and stop any service as well as enable/disable the User Account Control (UAC) file and registry virtualization of a process.
arithmetic mean. (Är'Ä­th-mÄt'Ä­k) The value obtained by dividing the sum of a set of quantities by the number of quantities in the set. For example, if there are three test scores 70, 83, and 90, the arithmetic mean of the scores is their sum (243) divided by the number of scores (3), or 81. See more at mean.
The arithmetic mean of these numbers is 11.8. This would be the time as measured by the experiment. The differences can be attributed to random errors like random fluctuations in temperature and humidity in the laboratory. When the word mean is used, it generally refers to the arithmetic mean. The mean gives very useful information in cases where the data is relatively symmetric. For example, if the data is nearly normally distributed, then the mean is the best measure of central tendency.