At present there are two ways to obtain a histogram. You can type a list in a cell
ListPlot([1,2,2,2,3,4,4,4,5,7], type=bar)
Or to list the values and their frequencies, the first list is a list of values and the second list is a list of frequencies,
ListPlot([1,2,3,4,5,7], [1,3,1,3,1,1], type=bar)