If you want to get the probability of at least one head through 10 times of flipping coins, the probability will be like
1 - P(all tails) = 1 -1/2^10 = 1 - 1/1024 =1023/1024
And if you want to get the probability of at least 2 heads through 10 times of tossing coins, then the probability will be like
1 - P(all tails) - P ( one tails)= 1 - 1/2^10 - 1/2^10*10 =1013/1024
That's cool, you got it, Wallace Tiger : )
