Line and Scatter
It allows you to visualize and compare trends of data over intervals of time.
The intervals are usually of equal size because that is less confusing. However, bar charts are used for many purposes where trends in time are not involved.
Line
True
No, a line graph shows data over time.
It is advantageous to use charts because it makes it easier to compare two variables over a period of time. It also becomes easier to explain or to present certain ideas.
yes
Genxfinance.com provides an indepth look on stock market trends in the past 10 years. It provides charts and a write up on the biggest changes in the market.
A line graph shows changes (or trends) over time.
A double line graph is used to compare two sets of data. Usually the data is taken over a period of time and compared at set intervals.
The difference between graphs and charts is mainly in the way the data is compiled and the way it is represented. Graphs are usually focused on raw data and showing the trends and changes in that data over time.
These are simply a convenient and practical period to track trends in key indicators especially , sales, profits, costs, income, customers served etc. One can also compare trends over time - eg how did a particular compare to results from the same quarter last year? Quarters also give you time to spot a trend and take action if necessary to influence results over the next quarter.