Imagine an experiment in which you flip a coin four times. The coin is weighted so that the probability of landing heads is twofold greater than landing tails. After tossing the coin 10 times, what is the probability of observing:
(a) no heads?
(b) 2 heads?
(c) 5 heads?
(d) 8 heads?
(a) no heads?
(b) 2 heads?
(c) 5 heads?
(d) 8 heads?
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I'm going to say answer D. If the chances of getting heads is even, then it would be 5 heads, and it has to be more than that. D is the only choice, (though I would have guessed 7 heads.)