Unfair Coins Ain't So Tricky
Mr.Richard isn't pretty lucky in winning toss in matches. So, he's thinking about making an unfair coin to give his luck a bit shape. He couldn't think making much better than a coin which will give 70% heads & 30% tails. What is the probability for Richard to get 7 heads out of 8 toss??
The answer is 0.198.
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