Assume a normal distribution and find the following probabilities. (Round the values of z to 2 decimal places, e.g. 1.25. Round your answers to 4 decimal places, e.g. 0.2531.) (a) P(x < 20|µ = 23 and o = 3) (b) P(x > 40|µ = 30 and o = 7) (c) P(x > 25 | u = 30 and o = 5) (d) P( 16 < x < 22|µ= 21 and o = 3)

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A: The total probability is equal to 1.

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Q: 1. The nicotine content of a certain brand of king size cigarette has a normal distribution with a…

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