document.write( "Question 1036355: If the probability of passing a road test on the first try is 62%, what is the mean, variance and standard deviation if there are 54 people taking the road test? \n" ); document.write( "
Algebra.Com's Answer #651161 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
Binomial (2 outcomes)
\n" ); document.write( "Mean=np=0.62*54=33.48.
\n" ); document.write( "variance=np(1-p)=0.62*54*0.38=12.72
\n" ); document.write( "SD=sqrt(12.72)=3.57 (unrounded from above)
\n" ); document.write( "
\n" );