Suppose that a fiat coin is tossed 10 times independently. Determine the pf of the number of heads that will be obtained.(adsbygoogle = window.adsbygoogle || []).push({});

I'm feeling really out of touch with this material. It seems like any number of heads is equally likely but I know that just can't be right.

My reasoning for saying such is that the probability of a head is 1/2 and the probability of a tail is 1/2,

So the probability of a head, then tail, then head is

(1/2)(1/2)(1/2)

Or head, head, head is

(1/2)(1/2)(1/2)

But I know that getting 5 heads in the ten flips and getting all heads aren't equally likely.. are they?

So can someone "remind" me how my thinking is wrong?

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# Homework Help: Writing probability functions

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