Statistics and Probability Puzzle

1234567891011121314
Across
  1. 5. middle value of random variable x
  2. 6. MR=(xmax+xmin)/2
  3. 9. sum of all values in a range of series
  4. 13. gaussion distribution
  5. 14. of population values
Down
  1. 1. the summation or integration of a possible values
  2. 2. polynomial with only terms
  3. 3. it is the value of random variable x
  4. 4. relationship of random variables X and Y
  5. 7. percentage of papulation depending on its value
  6. 8. zx
  7. 10. a number that reflects the chance or likelihood
  8. 11. a selection of data from a larger group of data
  9. 12. branch of mathematics dealing with the collection
  10. 14. the number that occurs most often