Maths Holiday homework

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Across
  1. 4. maximum frequent value
  2. 6. the product of a rational and irrational number
  3. 7. The ________ of a class is the frequency obtained by adding the frequencies of all the classes preceding the given class.
  4. 8. the product of two consecutive natural number is always
  5. 11. the probability of event equal to 1
  6. 12. Zeroes of a polynomial can be expressed graphically. Number of zeroes of polynomial is equal to number of points where the graph of polynomial is cutting:
Down
  1. 1. the number 'pi' is which type of number
  2. 2. The probability of event equal to zero is called;
  3. 3. an event having only one outcome is called
  4. 5. what of mean,median and mode cannot be determined graphically
  5. 9. If the graph of a polynomial intersects the x-axis at three points, then it contains ____ zeroes.
  6. 10. a quadratic polynomial can have ___ zeroes