Respuesta :

1. would be a circle graph, whether you take a sample or survey the entire population. 
2. should be I would say a bar graph. It shows the sales and shows how much they go up. A line graph would work as well. 
altavistard
Students can be counted, so that count in #1 is numerical.
Same with #2:  sales of DVDs can be counted and thus represent numerical data.

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