My question is trivial, but the problem is that I found contradictory answers on internet. So I have the following sample data:
31/08/2015, Monday, 'Seat Ibiza', 3 31/08/2015, Monday, 'Ford Focus', 2 01/09/2015, Tuesday, 'Seat Ibiza', 3 02/09/2015, Wednesday, 'Toyota', 1 07/09/2015, Monday, 'Honda', 2 08/09/2015, Tuesday, 'Volkswagen Golf', 1 08/09/2015, Tuesday, 'Seat Ibiza', 1
1) Now I want to build a classical histogram. I wonder if the frequencies should be absolute or relative numbers??
For instance, I would build the following frequency table, but I'm not sure if it's a must to use relative numbers (i.e. divide each number by total - 7):
Monday, 3 Tuesday, 3 Wednesday, 1
2) Another question is: can I call such graphic as a histogram, though discrete values are used? I read that the term 'histogram' refers only to continuous space.
3) Final question is: how the probability distribution would be estimated for these data?