- #1
EvLer
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Homework Statement
coin tossed 70 times, find exact value for probability that number of heads is between 35 and 55
Homework Equations
NA
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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