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A person tosses a coin 19 times. In how many ways can he get 12 heads?

Sagot :

Answer:

By getting head's 12 times

Step-by-step explanation:

Answer:

11C9 = 55

11! / [9!(11 - 9)!]

39916800 / (362880 * 2)

39916800 / 725760

55

Step-by-step explanation: