Question

an unbiased coin is tossed 4 times what is the probability that it will land on heads exactly once

Answer 1

Welcome to Open Study.

Answer 2

First off, the probability of getting heads if tossed once is 1/2, right?
You are trying to find out the chance that you will only get heads once, meaning 3/5 times have to be tails. but since the chance of getting heads or tails is equal (both 1/2), you do this:
1/2 * 1/2* 1/2 * 1/2
or (0.5)^4, which equals 0.0625, or 1/16

Answer 3

What is the probability of tossing a coin. If you find that then it will be simple.

Answer 4

sorry edit: 3/4 times have to be tails

Answer 5

hmmmm

Answer 6

@confluxepic we lost the person ages ago