Possible Duplicate:
How does accept rate work?
I am really wondering if detecting my yet un-accepted answers improve my acceptance rate?
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Sign up to join this communityPossible Duplicate:
How does accept rate work?
I am really wondering if detecting my yet un-accepted answers improve my acceptance rate?
I think you're confused about how the acceptance rate is defined. It's not how many of your answers have been accepted; it's how many answers you've accepted on questions you've asked.
So to answer your question, no, deleting your own unaccepted answers will have no impact on your acceptance rate.