What does class width mean? I am working on the age of the signers of the declaration of independence

You saw my response on another thread and you said that you were looking for frequency, while my answer there didn't answer to the question of frequency but class width.

So which one are you looking for? Class width or frequency?

And just don't give me another thumbs down because I didn't answer your question, because you are not making any sense by asking for class width and looking for the definition of frequency.