N A spinner contains 3 equal sections: one red, one yellow, What is P(red, then yellow)?
and one blue. The possible results of two spins are
shown in the tree diagram below.
0 1
O
wlo
R
Y-
R--- - (R, R)
- (R, Y)
B--- - (R, B)
R--- (Y, R)
Y--- - (Y, Y)
B - (Y, B)
- (B, R)
Y- - - (B, Y)
B- - - (BB)
--
R---
B