Asked Sep 27, 2019

A normal distribution has a mean of µ = 100 with σ = 20. If one score is randomly selected from this distribution, what is the probability that the score will have a value between X = 90 and X = 110?​


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Consider a random variable X, which follows normal distribution, indicates the scores. It has a mean...

The probability can be obtained using formula
- X-b- u

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The probability can be obtained using formula - X-b- u P(a<x<b)-P


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