A coin is tossed 7 times. what is the probability that the coin will land heads all 7 times?

The EXPERIMENTAL probability is 18% (18 times out of 100 times) (The experimental probability is what actually happens in the experiment and does not take account of the theoretical probability) The THEORETICAL probability is 25% ie there are 4 outcomes possible each with equal probability Head followed by Tail Head followed by Head Tail followed by Head Tail followed by Tail As Head + Head = one out of these 4, the THEORETICAL probability is 1/4 or 25% or Put another way. The THEORETICAL probability of a head in any one toss = 1/2 Therefore to get two heads in two tosses = 1/2 * 1/2 = 1/4 or 25%.

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