In this article, (and video above), we’re going to use a normal distribution to determine the probability of a curve. This question forms part of the probability & statistics section of the FE Exam and will give you a better understanding of what you can expect during the exam.

**Question:**

Given a normal distribution of quantity x, where n(x) represents the unit normal distribution function, what is the probability that a given sample quantity, x1, will lie between x = x0 and x = x2?

**Solution:**

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