1/2. What the previous tosses are has no impact on what a fourth toss of a coin is, so the chance of getting a tails is the same on any throw.
Chat with our AI personalities
The probability of Tails on the first toss is 0.5 .The probability of Tails on the second toss is 0.5 .The probability of Tails on the third toss is 0.5 .The probability of Tails on the fourth toss is 0.5 .The probability of all four is (0.5 x 0.5 x 0.5 x 0.5) = 0.0625 = 6.25%
Since each event is independent, the probability remains at 0.5.
(.5)^4=.0625
When h=head, t=tails First toss: heads/tails (1h/1t) Second toss: heads/tails (2h/1h1t*2/2t) Third toss: heads/tails (3h/2h1t*3/1h2t*3/3t) Fourth toss: heads/tails (4h/3h1t*4/2h2t*6/1h3t*4/4t) In short, 1+4+6+4+1=16 Chances of getting 2 heads and 2 tails = 6/16 * 100% = 37.5%
50%