The number of pits in a corroded steel coupon follows a Poisson distribution with a mean of 5 pits per cm2. Let X represent the number of pits in a 1 cm2 area.

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Find P(X = 2).

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.