Answer:[tex]\frac{2}{16}[/tex]
Step-by-step explanation:
if the coin is tossed four times then the possible sample space is formed
[tex]S=\left \{ HH, THH, HTHH, TTHH, HTTHH, THTHH, TTTHH, ...\right \}[/tex]
For the probability that the coin is tossed only four times is when
For tossing four times sample space is
S=( HHHH HHHT HHTH HHTT
HTHH HTHT HTTH HTTT
THHH THHT THTH THTT
TTHH TTHT TTTH TTTT )
out of the above required ones are HTHH,TTHH
so the probability is [tex]\frac{2}{16}[/tex]
