document.write( "Question 1159287: A new car that is a gas- and electric-powered hybrid has recently hit the market. The distance travelled on 1 gallon of fuel is normally distributed with a mean of 45 miles and a standard deviation of 7 miles. Find the probability of the following events\r
\n" );
document.write( "\n" );
document.write( "A. The car travels more than 53 miles per gallon.\r
\n" );
document.write( "\n" );
document.write( "B. The car travels less than 37 miles per gallon.\r
\n" );
document.write( "\n" );
document.write( "C. The car travels between 37 and 48 miles per gallon. \n" );
document.write( "
Algebra.Com's Answer #782279 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! z=(x-mean)/sd \n" ); document.write( "z> (53-45)/7 or >1.143 with probability 0.1265\r \n" ); document.write( "\n" ); document.write( "fewer than 37 miles is z < (37-45) or <-1.143 or probability 0.1265 (the function is symmetrical)\r \n" ); document.write( "\n" ); document.write( "between 37 and 48 is z between -1.143 and + 0.429 probability is 0.5393 \n" ); document.write( " |