Problem 86 of 7
Use independence to calculate probability of repeated events: flip tails four times in a row.
Using a hint is okay. It just tells the trainer to give you a little more review.
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multiply probabilities across independent trials.
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Repeated trials must be independent before multiplying probabilities.
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Your answer is equivalent to the expected form.
Walkthrough
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1. Confirm repeated trials are independent.
2. Write the probability of each required event.
3. Multiply the probabilities.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Multiplying when context says without replacement or otherwise dependent.