You would use a bar graph when not doing frequency and you would use a histogram when doing frequency.
You could use a histogram when you have more spread apart data (like maybe an outlier). You could use a bar graph when the data is closer together (like 1,2,3,4).
You would use a bar graph when ever you are not doing in a time interval. You would use a Histogram when comparing time intervals.
You would use a bar graph when you are plotting data and when you are not doing an interval. If you were to use a histogram to compare intervals.
Bar graphs are used when frequency is being used and histograms are used frequency is being involved.
When a histogram would be used- maybe when the government takes a census where they get the averages ages and how many people are in each age group.
When a bar graph would be used- to show a model of something. If you were doing a project on how much sugar is in drinks you could make a bar graph for that.
You would use a bar graph when you are plotting points or data and without using the interval. You would use a histogram when you are when you are comparing the time invertals.
You would use them if you where taking a survey
A bar graph is used to show comparisons between data. You would use a histogram when you want to compare intervals.
You would use a histogram when comparing how many people take the bus Monday-Wednesday, and Thursday-Friday. You would use a bar graph when you are comparing data, such as how many people like pizza, ice cream, and popsicles.
You would use a histogram when you are looking to show growth and a freguency chart to show a comparison!
You would use a bar graph to keep track of your utility bills. And you would use a histogram to keep count of population in the US.