ANSWERS: 1
  • 5.50 minutes, or 5.75 minutes minus 15 seconds. Reason this out: Suppose three times recorded were 5.50, 5.75 and 6.00 minutes, resulting in a mean of 5.75. But the ACTUAL times were 5.25, 5.50 and 5.75, which gives us a mean of 5.50.

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