Answer:
Odds in favor of receiving a gift = 5/13
Step-by-step explanation:
The probability of receiving a gift, P(R) = 5/18
Probability of not receiving a gift, P(nR) = 1 - 5/18 = 13/18
The odds in favor of receiving a gift is calculated below:

Therefore:

Odds in favor of receiving a gift = 5/13