Data collection on the 10 New Query smell 20 sheets to provide samples of the students at 5/2 is obtained by sampling assessed the statistical analysis.
Data collection makhit fishy query I see 10 articles. The number of 20 sheets To provide a sample of the student's grade 5/2 is derived from a specific selection, measurement, and statistical data analysis.
Create a data collection questionnaire bat, opinions of the article 10 to 20, the Group is a good example of a Mathayom 5 student/2. Select a specific assessment of the statistical analysis.