math
posted by kk on .
a group has 6 fifthgraders, 7 sixthgraders, & 4 eighthgraders. One member of the group will win a prize. Describe the chances that the winner will be a sixthgrader

Pr(sixth)= 6/(6+7+4)
posted by kk on .
a group has 6 fifthgraders, 7 sixthgraders, & 4 eighthgraders. One member of the group will win a prize. Describe the chances that the winner will be a sixthgrader
Pr(sixth)= 6/(6+7+4)