My (low effort) math homework

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Across
  1. 5. Generalized function that extends the concept of functions to include singular objects
  2. 6. Selection of items from a larger set where the order of selection does not matter.
Down
  1. 1. A way, especially one of several possible variations, in which a set or number of things can be ordered or arranged.
  2. 2. The branch of mathematics measuring the likelihood of an event occurring, expressed as a number between 0 (impossible) and 1 (certain)
  3. 3. The branch of mathematics focused on the collection, organization, analysis, interpretation, and presentation of data to make informed decisions and predictions under uncertainty.
  4. 4. The activity of playing games of chance for money, or of betting on the outcome of future events such as the results of races or games.