(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

coin tossed 70 times, find exact value for probability that number of heads is between 35 and 55

2. Relevant equations

NA

3. The attempt at a solution

P(heads) = 1/2;

and then I am not sure....

edit: ok, maybe something like this:

(1/2)*(35/70) - (1/2)*(55/70) ?? could someone confirm/correct?

Thanks in advance.

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# Forgot basic probability stuff

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