Say I have a large data set of 1,000,000 points. If I plot a histogram of this data, I get a bar chart with bins along the x-axis and the number of items in each bin along the y-axis. If I take the number of items in each bin and divide this by the total number of items (1,000,000 in this case), have I arrived at an experimental approximation of the probability density function? Everything I know says that yes, dividing the histogram by the total number of points gets me to an experimental approximation of the PDF, but I want someone who is more familiar with this to confirm. Thank you!