A curved graph could be a example of

On a graph, these values form a curved, U-shaped line called a parabola. All quadratic functions form a parabola on a graph. ... Quadratic functions are used to describe things with smooth symmetrical curves, like the path of a bouncing ball or the arch of a bridge.

Step-by-step explanation:

true? is that what you're asking or do you mean something else?

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed