document.write( "Question 564244: How do you know how many classes to choose when making charts? \n" ); document.write( "
Algebra.Com's Answer #365297 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
It's up to you, but 5 is usually considered a minimum.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );