Answer:
I answered the 1st one on your other post
2nd: 1/8
3rd: I don't know anything about inchwe study in cm so I don't know the answer
Explanation:
we throw a coin. it has 2 probabilities: heads or tails
each probability is 1/2
1st throw 1/2
2nd throw 1/2
3rd throw 1/2
as all these throws are independent from one another, we put × between them. so: 1/2 ×1/2 ×1/2= 1/8