One word: variables
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the best method to collect primary data is to make a Baseline Data or using the method of Rapid Rural Appraisal.
tools for collecting scientific data....one tool for recording,collecting, and analyzing data is a microscope :)))
the purpose of a data chart is to write your data down by using your chart
"Hello my name is Mohammed Ahmed sheikh and I am collecting primary and secondary data for my travel and tourism class to answer my hypothesis question which is "To what extent has diseases like swine flu affected the number of tourists willing to book holidays abroad?" If you could answer the question for me it would mean a lot to me.
A chart is a visual representation of data. You store your data in charts.