Question

Asked Oct 21, 2019

Please show steps for TI 84 as well.

Step 1

**Introduction:**

Suppose a random variable *X* has mean *μ* and standard deviation, *σ*. Then, the *z*-score corresponding to a particular value, *X* = *x* is:

*z* = (*x* – *μ*)/*σ*.

For a sample mean value, the expected value is *μ**x̅* = *μ* and standard deviation *σ**x̅* = *σ/&...*

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