An experiment consists of spinning a coin 3 times in succession and recording the outcomes ie either heads (H)

only b & C so its 5. because you should have had a universe of 2^3=8 when you only had three chances, so making it 4 spins will make it 2^4=16. also, A is not tru because the probability that no spins results in T is the same probability that all of the spins result in T. Because getting no t's is the same as getting all H's and the probability of getting all H's and all T's are the same.