mathematical terms

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Across
  1. 2. examine the difference between numbers
  2. 5. a visual way to display frequency data using bars
  3. 6. the study of approximation techniques for solving mathematical problems
  4. 10. a graph that displays information over time
  5. 11. a collection of information that is divided into groups
  6. 13. the most repeated number in a list of numbers
  7. 15. refers to the use of numbers
  8. 16. a list of questions used to gather info about individuels or a group
  9. 18. a calculated central value of a set of numbers
Down
  1. 1. a way of showing data using pictures
  2. 3. a circular statistic chart
  3. 4. a number that tells the position of something in a list
  4. 7. a function that does not have any abrupt changes in value
  5. 8. the middle of a sorted list of numbers
  6. 9. a number of times a particular value appears in a set of data
  7. 12. a unary numeral system
  8. 14. the study of mathematical structures that are discrete
  9. 17. the average