On his way to work a man notices that 9 of the 16 traffic lights are green. is there a significance to say that these traffic lights are programmed to allow ease to traffic

No, the results are likely to occur by chance.

Step-by-step explanation:

Traffic lights were not programmed to facilitate traffic, there is no statistical evidence to think otherwise. If you pay attention you will realize that the amount of green traffic lights is almost equal to the amount of non-green traffic lights, with this we can conclude that what happened was that the traffic lights turned green by chance and not by configuration.

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.