STATISTICS CROSSWORD

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Across
  1. 4. average of the given information
  2. 6. branch of mathematics for anayltical purpose
  3. 7. midvalue of the given data
  4. 8. number of times the observation occurs
  5. 9. collection of information
Down
  1. 1. average of class interval
  2. 2. range of upper limit and lower limit
  3. 3. difference of upper limit and lower limit
  4. 5. difference between highest and lowest value data