Maths crossword

2. Data available to use in an unorganized form called ______ data.
4. The difference between the upper class limit and lower class limit is called the _____ of the class interval.
8. in order to draw meaningful inferences from any data, we need to organize the data ______.
11. the reciprocal of a positive rational number is _____.
13. The expressions forming equations have to be ______ before we can solve them by usual methods.
16. the operation for multiplication is_____for rational numbers.
17. each outcome of an experiment or a collection of outcomes make an ______.
18. a circle graph shows the relationship between a ______ and its part.
20. An algebraic equation is an equality involving ______.

1. Data is represented _____ to give a clear idea of what it represents.
3. the graphical representation of data when there is no gap between the class interval is called a ______.
5. the operation for addition is ____ for rational numbers.
6. The rational number one is the _____ identity for rational numbers.
7. rational numbers can be represented on a_____ line.
9. the rational number zero is the ____ identity for rational numbers.
10. ______ gives the number of times that a particular entry occurs.
12. An equation is the equality of the values of two ______.
14. the product of two rational number is always a ______.
15. A ________ graph is also called a pie chart.
19. In an equation the values of the expressions on the LHS and RHS are _____.