Math Help - calculate the odds in favour of

1. calculate the odds in favour of

not tossing exactly two heads with three coins

2. Originally Posted by nafiro
not tossing exactly two heads with three coins

You can get fancy with binomial and such but this is easy enough

HHH
HHT
HTH
HTT
TTT
TTH
THT
THH

And we see that HHH, HTT, TTT, TTH, THT all work so its 5/8