tail event
Word Rarity
Uncommon
Frequency: Zipf frequency 4.28 in modern English
12
Scrabble Score
9
Letters
1
Syllables
7
Unique Chars
Meaning
noun
an event associated with a given infinite sequence Y=y_k|k>k_0 that is determined by any subsequence of the form Y_n=y_k|k>n,n>k_0 (a "tail" of that sequence)
noun
a low-probability event
Example Sentences
- "Exactly two years later, it was shattered by the force of a tsunami equivalent to the impact of 250 jumbo jets flying at 1,000 kilometers an hour—the very apotheosis of a real tail event."
- "... When the MS index is high ex ante, subsequent large stock market losses and crashes are no longer tail events at all—rather they are perfectly expected events."
- "Policy frameworks anticipating only “ordinary” shocks within the usual economic cycles may not be very effective in mitigating the impact of such tail events when they actually materialize."
Etymology
Inflected Forms
Phrases
Kolmogorov's zero-one law
Frequently Paired Words
Kolmogorov's zero-one law