As per the question it is given,
Two coins are tossed simultaneously times,
Now,
Total number of times 2 tails come up
P( tails will come up) = Number of times tails come up/Total number of times
the coins were tossed
Total number of times tail come up
P(1 tails will come up) = Number of times tails come up/Total number of times
the coins were tossed
Total number of times no tail come up
P( tails will come up) = Number of times no tails come up/Total number of times
the coins were tossed