In a Chi-square analysis, what general condition causes one to reject (fail to accept) the null hypothesis

the answer is a beach is the best place to be

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.

so mark-up is 0.4 multiplied by 180 = 72