document.write( "Question 930307: 1. A recent survey found that 80% of all adults over 50 wear glasses for driving. You randomly select 20 adults over 50, and ask if he or she wears glasses. Decide whether you can use the normal distribution to approximate the binomial distribution.
\n" ); document.write( "
\n" ); document.write( " Can use normal distribution
\n" ); document.write( "
\n" ); document.write( " Cannot use normal distribution
\n" ); document.write( "
\n" ); document.write( " Not enough information has been provided
\n" ); document.write( "
\n" ); document.write( " None of the above
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #564832 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
Note: We can use the normal distribution as a close approximation to the
\n" ); document.write( " binomial distribution whenever np ≥ 5 and nq ≥ 5.
\n" ); document.write( ".2(20) = 4
\n" ); document.write( "........
\n" ); document.write( "Cannot use normal distribution
\n" ); document.write( "
\n" );