Consider a company that selects employees for random drug tests. the company uses a computer to randomly select employee numbers that range from 1 to 6857 6857. find the probability of selecting a number divisible by 1000. find the probability of selecting a number that is not divisible by 1000.

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.