A bar graph shows discreet data, but other types can also.
Bar graph.
A bar graph works well in this case
Almost any kind of graph can be used to show discrete data: You can use a line graph (most economic data), a bar graph (demographics), a pictogram, a pie chart, a scatter plot, radar. Although 3-d charts can also be used, they are very poor at conveying information because of the difficulty in interpreting depth.
A line graph is used to show data over time.
Graph's functions visualize data, putting it in perspectie and comparision. and to show data
A pie chart :) or a bar graph.
Bar graph.
Yes.
Bar graphs are used to graph frequencies or amounts of data in discrete groups. For example.... look at this bar graph below!
A bar graph works well in this case
Almost any kind of graph can be used to show discrete data: You can use a line graph (most economic data), a bar graph (demographics), a pictogram, a pie chart, a scatter plot, radar. Although 3-d charts can also be used, they are very poor at conveying information because of the difficulty in interpreting depth.
circle graph
A line graph is not a good way to represent the data as the number of CDs is a continuous variable, but the artists are a discrete, categoric variable. A line graph should be used when both variables are continuous. A bar chart or bar graph should be used when one variable is continuous and one is discrete.
what is commonly used to show discrete data
It can be, but not necessarily. If I had the heights (continuous variable) of a class of students I might use a histogram. Conversely, if I had the number of cars (discrete variable) driving by every minute, I would use a line graph. It all depends on which kind of graph conveys the information to your audience in the best way.
data that can be counted, that does not show a change over time
Straight line graphs show continuous data (like your distance from something over time). Ones that have skips in the line are representations of noncontinuous, or discrete data (like how many papers you have in a folder).