algebra 2

A fair coin is tossed 4 times. Given that each of the first 3 tosses land tails up, what is the probability that all 4 tosses land tails up?

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  1. i think ...
    isn't it
    3/4?

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  2. 1/2.. Same as a single coin toss. The odds of each toss are independent of what went before.

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  3. oh yeah duh haha
    it doesn't matter what was before there're two choices haha i remember now :]
    hey answer my question!!

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  4. I did answer your question

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