Number of yellow tickets = 3
Number of green tickets = 4
Number of blue tickets = 8
Total Number of tickets = 3 + 4 + 8 = 15
(i) P (getting a yellow ticket) = 3/15 = 1/5
(ii) P (getting a green ticket) = 4/15
(iii) P (getting a blue ticket) = 8/15
(iv) Since, Basket contains yellow, green and blue tickets only.
∴ Number of red tickets = 0
∴ P (getting an red ticket) = 0/15 = 0
(v) Total number of green and blue tickets = 4 + 8 = 12 tickets
P (not getting yellow ticket) = P(getting either green or blue ticket) = 12/15 = 4/5
OR,
P (not getting a yellow ticket) = 1 – (1/5) = (5 – 1)/5 = 4/5