document.write( "Question 1168121: The time it takes Jessica to bicycle to school is normally distributed, with a mean time of 15 minutes and a variance of 4 minutes. Jessica has to be at school at 8:00am. What time should she leave her house so she will be late only 4% of the time? \n" ); document.write( "
Algebra.Com's Answer #792786 by VFBundy(438)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( " \n" ); document.write( "x - 15 = 4(1.75) \n" ); document.write( " \n" ); document.write( "x - 15 = 7 \n" ); document.write( " \n" ); document.write( "x = 22 \n" ); document.write( " \n" ); document.write( "If Jessica leaves her house by 7:38 AM (22 minutes before 8:00 AM), she will be late only 4% of the time. |