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**Paulo1913** John is collecting a set of 4 Native Birds cards, from Oatie Flakes cereal packets.

The manufacturers of Oatie Flakes found that some of their machines malfunctioned and 20% of the packets of cereal contain 2 Native Birds cards instead of 1 card.

In John’s class there are 22 students (including John) trying to collect the Native Bird card set.

1. After a while 20 of the 22 students in John’s class have only **one** card left to get for the complete set.

a) **Use theoretical probability **to predict how many of these 20 students will complete their set with the next packet of Oatie Flakes.

**b)Use theoretical probability **to predict how many of these 20 students will complete their set given that the next packet is a 2-card packet of Oatie Flakes.

Can someone please show me how to do this?