Example:
Data [2-7] [7-11]
Frequency [3] [5]
The histogram should look something like this.
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In Calc, add a column for bins (2,7,11) and then another column for the FREQUENCY function. I also made a column for bin labels to make it look better.
Then select C3 to D4 and go to Insert → Chart.
Download: Sample file.ods
To do this in Writer, either go to Insert → Chart and copy the data, or go to Insert → Object → OLE Object and select the Calc file.
This answer was adapted from a similar question at Plotting histograms in calc?.
Thank you for the answer and sorry for the question format, it’s my first time.