Quantitative data is numeric information including quantities, percentages, and statistics

http://www.google.co.uk/search?hl=en&ei=F8-oS6vxKpj80wTDut3kDQ&sa=X&oi=spell&resnum=0&ct=result&cd=1&ved=0CAQQBSgA&q=define%3AQuantitative+data&spell=1

Qualitative data is non numeric information such as conversation, text, audio, or video

http://www.google.co.uk/search?hl=en&defl=en&q=define:Qualitative+data&ei=mM6oS4a0NZqI0wTG1NnmDQ&sa=X&oi=glossary_definition&ct=title&ved=0CAYQkAE