Math crossword

4. a triangle with three sides of different lengths
6. two angles added whose some is 180
9. of two lines.
10. likelihood an event will occur
12. an angle that measure 90 degrees
13. each member of the population has an equal chance of being included in the sample
15. one of two opposite and equal angles formed by the
16. the number found when the sum of two or more numbers is divided by the number of addends in the sum

1. an angle whose measure is between 90 degrees and 180 degrees
2. a small portion of a population used to give a researcher an idea of what the entire population might look like
3. the number or numbers that appear most in a list of data
5. two angles whose sum is 90 degrees two angles that have a common side and common vertex. The angles lie on opposite sides of their common side
7. all sides are the same
8. angles whose some is less than 90
11. the difference between the largest and the smallest number in a list
14. the middle number of a list of data when the numbers are arranged in order from the least to the greatest