(Binomal Distribution) With n = 20, p = 0.2, calculate the probability that 2X >4 (Homework)

by Ivan Lee   Last Updated August 14, 2019 04:19 AM

This is a homework question. The scenario is as follows: A dishwasher can accommodate 20 plates in one loading. With every loading, there is a 20% chance that 1 plate will not be cleaned properly. With X representing the number of plates that are not cleaned properly, find P(2X > 4). n = 20, p = 0.2

I have no idea how to find P(2X > 4). Any hints or thoughts on this is greatly appreciated



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