Answer: C
Step-by-step explanation:
Not sure if this is true or false but if you rotate the decagon 45 degrees it is mapped onto itself every time. So if this is true or false it is true.
(2x7)-3
=11
.................
There are 8 possible outcomes when you throw a coin three times:
Out of these combination, the ones with exactly two heads are
So, 3 combinations out of 8 have exactly two heads. This means that the probability of having two heads with three coin throws is 3/8