Question: 1. If 8 people are qualified for the next flight of a new space vehicle, how many different groups of 3 people can be chosen

1. If 8 people are qualified for the next flight of a new space vehicle, how many different groups of 3 people can be chosen for the flight?
2. A traveling salesperson has 30 products to sell but has room in her sample case for only 20 of the products. If all the products are the same size, in how many ways can she select 20 different products for her case?
3. Gambling A poker hand consists of 5 cards dealt from a deck of 52 playing cards. How many different poker hands are possible?

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