How would I solve these problems?

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Multiple Choice C(9,2) x C(9, 3) x C(9, 2) C(45, 5) O P(9,2) x C(9, 3) x C(9, 2) C(45, 5) C(5, 2) x C(9, 3) x C(9, 2) C(45, 5) P(5, 2) x C(9, 3) x C(9, 2) C(45, 5) C(5, 2) X C(5, 3) x C(5, 2) C(45, 5) O P(5, 2) x C(5, 3) x C(5, 2) C(45, 5)P(9, 2) x C(5, 3) x C(5, 2) C(45, 5) O None of the above is correct.40 tickets, 5 picked, full house There are 45 tickets, each one has a digit between 1 and 9 on it and each has a letter A, B, C, D, or E on it. Here is a table of all the tickets: 4 A4 B4 c4 D4 E4 You pick five tickets at random. What it the probability that three of them share one letter, and the other two share anotherletter? For example, this would be satisfied if the 5 tickets picked were A3, A6, A7, D6, 09. Note: this would NOT be satisfied if the 5 tickets picked were A3, A6, A7, A6, A9. 40 tickets, 6 picked, two 3-of-a-kind in letters There are 45 tickets, each one has a digit between 1 and 9 on it and each has a letter A, B, C, D, or E on it. Here is a table of all the tickets: - 2 3 4 5 6 7 8 9 A A1 A2 A3 A4 A5 A6 A7 A8 A9 B B1 B2 B3 B4 B5 B6 B7 B8 B9 C C1 C2 C3 C4 C5 C6 C7 C8 C9 D D1 D2 D3 D4 D5 D6 D7 D8 D9 E E1 E2 E3 E4 E5 E6 E7 E8 E9 You pick six tickets at random. What it the probability that three of them share one letter, and the other three share another letter? For example, this would be satisfied if the six tickets picked were B3, B6, B8, E2, E7, E9. Note: the following would NOT satisfy this: B2, B3, B6, B7, B8, B9.40 tickets, 5 picked, all different letters There are 45 tickets, each one has a digit between 1 and 9 on it and each has a letter A, B, C, D, or E on it. Here is a table of all the tickets: 2 3 4 5 6 7 8 9 A A1 A2 A3 A4 A5 A6 A7 A8 A9 B B1 B2 B3 B4 B5 B6 B7 B8 B9 C C1 C2 C3 C4 C5 C6 C7 C8 C9 D D1 D2 D3 D4 D5 D6 D7 D8 D9 E E1 E2 E3 E4 E5 E6 E7 E8 E9 You pick five tickets at random. What it the probability all 5 of them have different letters on them? (For example, this would be satisfied if the 5 tickets picked were B5, A8, C5, D9, E8.)40 tickets, 5 picked, all different letters and numbers There are 45 tickets, each one has a digit between 1 and 9 on it and each has a letter A, B, C, D, or E on it. Here is a table ofall the tickets: 4 A4 B4 C4 D4 E4 You pick five tickets at random. What it the probability all 5 of them have different letters and different numbers on them? (For example, this would be satisfied if the 5 tickets picked were A5, B7, C4, DZ, E8.) Multiple Choice 95 C(45, 5) O 59 C(45, 5) O 9x8x7x6x5 C(45, 5) O 5x4x3x2x1 C(45, 5) C(9, 5) C(45, 5)C(5, 5) C(45, 5) None of the above is correct