You design a new measurement instrument to measure social anxiety in adolescents of ages 12-23. When you test the scale out with a sample of 300 youth you find that the scale accurately measures social anxiety and it produces consistent results for all participants. These results indicate that this scale is likely:

f

step-by-step explanation:

f

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.