What does it mean when we say "the perimeter that is exceeded by 89% of parts". I searched everywhere, can't find the meaning of "exceeded by" phrase.

This was from an online exam that I solved.

2 Answers 2


They're looking for the measurement of a perimeter where 89.2512% of the possible combinations have a larger perimeter. In other words:

10.7488% of perimeters < p < 89.2512% of perimeters

  • Thank you so much. Another doubt, when we say "my score was exceeded by Alexa", it means "Alexa scored more than me", and not "Alexa helped me score more", right? Commented Oct 21, 2017 at 6:02
  • @User49582934 Yes, although it would be more common to say "My score was exceeded by Alexa's", and even more common to say "Alexa exceeded my score". "Exceed" also relates to the adjective "excessive", as in "He drank excessive amounts of alcohol". Commented Oct 21, 2017 at 13:43

So exceed means to go beyond. So since they're talking about statistics, they want you use the standard deviations from the x and y random variables and using the expected values, a.k.a. means, and calculate the perimeter that goes beyond or exceeds 89.2512%, implying there is only 1 correct answer;

Not the answer you're looking for? Browse other questions tagged or ask your own question.