Cristian's Crossword Puzzle

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Across
  1. 1. An element of the set of whole numbers and their opposites
  2. 3. A comparison of two quantities measured in different units
  3. 4. The number of times a data value occurs
  4. 8. The sum of the areas of the faces, or surfaces, of a three-dimensional figure
  5. 10. The middle number or the mean (average) of the two middle numbers in an ordered set of data
  6. 11. A table that lists items together according to the number
  7. 13. A bar graph whose bars represent the frequency of numeric data within equal intervals
  8. 15. A plane formed by the intersection of a horizontal number line called the x-axis and a vertical number line called the y-axis
  9. 17. The number that indicates how many times the base is used as a factor
  10. 19. The smallest number, other than zero, that is a multiple of two or more given numbers
  11. 20. The number or numbers that occur most frequently in a set of data; when all numbers occur with the same frequency, we say there is no mode
Down
  1. 2. The largest common factor of two or more given numbers
  2. 5. The sum of the items in a set of data divided by the number of items in the set; also called average
  3. 6. A question that has many different, or variable, answers
  4. 7. A value much greater or much less than the others in a data set
  5. 9. In statistics, the difference between the greatest and least values in a data set
  6. 12. A rate in which the second quantity in the comparison is one unit
  7. 14. The two perpendicular lines of a coordinate plane that intersect at the origin (singular: axis)
  8. 16. The number of cubic units needed to fill a given space
  9. 18. A mathematical sentence that shows the relationship between quantities that are not equal