document.write( "Question 461818: Without providing the large dataset, (n=855) what's the best method to solve?\r
\n" ); document.write( "\n" ); document.write( "What is the probability that a person selected at random from the data will be under 25 years of age or over 50 years of age?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #316699 by robertb(5830)\"\" \"About 
You can put this solution on YOUR website!
What's the sample mean and sample variance (or standard deviation)? \n" ); document.write( "
\n" );