Answer
1/64
Work Step by Step
There are 2*2*2*2*2*2 = 64 possible outcomes when flipping a coin six times. So the probability of HHHHHH is 1/64.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.