Z-Score for a Value of a Random Variable The z-Score for a ...

Using z-Scores to Find Normal Probabilities or Random Variable x Values: If we’re given a value x and need to nd a probability, convert x to a z-score using z = x ˙; use a table of normal probabilities (or software, or a calculator) to get a cumulative probability, and then convert it to the probability of interest. ................
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