Mathamatics

2. the average of a group of numbers
3. the highest or lowest point and the middle of the parabola
5. all the inhabitants of a particular town, area, or country.
7. another word for the intercepts
8. each of four equal groups into which a population can be divided according to the distribution of values of a particular variable.
10. the branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles.
12. opens up or down
14. the majority of a number in a group of numbers
15. prejudice in favor of or against one thing, person, or group compared with another, usually in a way considered to be unfair

1. the area of variation
4. growth growth whose rate becomes ever more rapid in proportion to the growing total number or size
6. Law a law stating that the square of a side of a plane triangle is equal to the sum of the squares of the other two sides minus twice the product of the other sides multiplied by the cosine of the angle between them.
9. The side opposite the right angle in a right-angled triangle
11. middle value of numbers
13. having a common vertex and a common side