percentages
they both show data
circle graph
no
No you could not.
no
You would use a bar graph to show data changes over time or to show comparisons among items. A line graph can also be used to show data changes over time or comparisons. A pie/circle graph would be used to show the relative amount/size of items in a data set. A scatter plot is used to show trends and similarities in a large number of data points. This link might be useful too. http://office.microsoft.com/training/training.aspx?assetid=rc011097791033&ofcresset=1
Circle graphs don't show change - just proportions.
You cannot. A circle graph cannot be used to illustrate relationships between two variables.
circle graph
circle graph /aka/ pie chart
Histogram which is a type of bar graph. The data is grouped into equal ranges and the bars show how many occurances are in each range.
No you could not.