Across
1
Visual representation of data
4
Symbol representing unknown value
5
Reference line in a graph
7
Sum divided by count
9
Number with digits after a point
Down
2
Number less than zero
3
Middle value in an ordered dataset
6
Part of a circle's circumference
8
Part of a whole number
10
Rectangular array of numbers
11
Part of a line with two endpoints
12
U-shaped curve of a quadratic function
