If two coins are tossed, there is a space of four possible results...
[ heads, heads]
[ heads, tails ]
[ tails, heads ]
[ tails, tails ]
...so there is a one in four (25%) chance of the result being both heads.
Similarly, there is a one in four chance of both coins showing tails. There is a 50% chance ( 2 in 4) that the result will be one coin head and the other tails.
[ heads, heads]
[ heads, tails ]
[ tails, heads ]
[ tails, tails ]
...so there is a one in four (25%) chance of the result being both heads.
Similarly, there is a one in four chance of both coins showing tails. There is a 50% chance ( 2 in 4) that the result will be one coin head and the other tails.
