Significant Digits

Basic Statistics > Significant Digits

Significant digits refers to how many important or interesting digits there are in a number. For example:

  • 221 = 3 sig. digits
  • 2212 = 4 sig. digits
  • 2211.1 = 5 sig. digits
  • 0.0022 = 2 sig. digits. We aren’t ever interested in leading zeros.

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