FMath 11, 20-2
7.4 Z-SCORE'S
1. Determine the \( z \)-score for each value of \( x \). Round to to
a. \( \mu=200, \sigma=25.4, x=250 \)
Answer
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Answer
\( z \approx 1.9685 \)
Steps
Step 1 ：\( z = \frac{x - \mu}{\sigma} \)
Step 2 ：\( z = \frac{250 - 200}{25.4} \)
Step 3 ：\( z \approx 1.9685 \)
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