Geographers use history just like historians do, though they use it spatially while historians use it temporal. It helps them get a spatial perspective on what they are studying :)
It is quantitative data.
you find the mad of the data by
The mean of a set of data is the sum of that data divided by the number of items of data.
One reason I can think of why you might not be able to find the mean of numerical data would be if there were missing data points.
A person can find information about data integration services from several different places. Some of these places include Cap Tech Consulting and Hortonworks.
The data of European stocks can be found in numerous different places. One very helpful site which lists data of European stocks is CNNMoney. Here you can find data for European stocks as well as American and Asian stocks.
There are about 3 or 4 places that offer IPad data plans. You could check your local AT&T or Verizon's service and request the iPad data plan for your iPad.
There are many places to find information on managing raw data. Many internet sources are used to find such things. Libraries tend to have books on this subject as well as many internet sites that deal with Computer techniques and raw data
There are numerous places one can find data mining consultant services. One such place is Excel Business Solutions and another is called Business Intelligence Solutions.
There are many online data entry jobs available and are flexible because you can work from home. Some places to find these jobs are www.online-data-entry-jobs.com and www.dataentryjob.com
Historians use science and computers to help them work efficiently. They can catalog the information they gather out in the field.
San Salvador
Historians and archaeologists found them when they investigated caves and other places.
There are any places where one could look to find more information about how to compare site data for online websites. There are many websites like Way Back that calculates site data.
A person can find details of the British Crime Survey from several different places. Some of these places include the Office for National Statistics and the Economic and Social Data Service.
Tape data recovery can be found at many places online as well as some physical stores in various areas. One example of a tape data recovery online is ironmountain.