Will's Math Puzzle

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Across
  1. 2. with the dark clouds moving in, the ____ of rain is high
  2. 6. a lot of sororities have this in their name
  3. 9. easy as
  4. 11. a type of statistics that compares the treatment of groups and make generalizations about the larger population of subjects
  5. 13. a shape with 2 equivalent sides
  6. 14. the amount of chocolate in an M & M
  7. 15. a discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents
Down
  1. 1. tok tik
  2. 3. we call them real zeros because there can be complex or ___ zeros
  3. 4. greater than a right angle
  4. 5. a horizontal line drawn over a group of terms in a mathematical expression to indicate that they are to be operated on as a single entity by the preceding or following operator
  5. 7. rhyming with particular, lines can be
  6. 8. the number of elements in a set or other grouping, as a property of that grouping
  7. 10. a value or number that never changes in expression
  8. 12. the beginning of a computer game name that is dashing