Current location - Training Enrollment Network - Mathematics courses - Ask for help to see the solution of a probability problem in mathematics (compulsory 3 in senior high school mathematics);
Ask for help to see the solution of a probability problem in mathematics (compulsory 3 in senior high school mathematics);
1 red circle, red three, red long | red circle, blue three, red long | red circle, blue three, red long | blue circle, blue three, blue long | red circle, red three, blue long | red circle, red three, blue long | blue circle, red three, blue long |.

2 1 8

2 2 1/2

2/3 and a half

two-fourths