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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

Number of possible outcomes : (HT) (TH) (HH) (TT) = 4 Therefore four outcomes are posssible Number of head ones in every outcomes: (HT) (TH) (HH) Here (HH) is included because head comes atleast once in this outcome So the number of head onces in every outcome = 3 Probability = Total outcomes /possible outcomes = 4/3 Therefore number of head appearing once is of probability 4/3.