School polo shirts come in small, medium, large and extra-large. they are available in 3 colors: red, blue, and green. what is the probability of choosing a large blue shirt?

the answer is:

mean: 6

mad: 2.14

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.