5 ms·

Yup. Did I mention that with cross tabulation we'd need a lot of data!!!! :-)!!!

• tomrod 8y ago
  You did!
• AnthonyMouse 8y ago
  But isn't that the whole problem? You quickly run into the case where the required sample size is larger than the entire population size.
  • graycat 8y ago
    So, you expect us to boil it all down to just F = ma, and f'get about the apple, the apple tree, the time of day, the phase of the moon, the temperature of the day, what Newton was wearing????? That was a really good shot at causality. Let me just say, quite generally, causality is super tough to find.