Question

Suppose six coins are tossed then probability of getting one tail

Answer 1

$n(s) = 64 \\ n(e) = (thhhhh.hthhhh.hhthhh.hhhthh.hhhhth.hhhhht) = 6 \\ p(one \: t) = \frac{6}{64} = \frac{3}{32}$