Scores on a math test have average of 74 with standard deviation of 5. What is the z-score for a student who earned a 68 on the test?
Added by Shareef C.
Step 1
Step 1: Calculate the z-score using the formula: \( z = \frac{x - \mu}{\sigma} \), where \( x = 68 \), \( \mu = 74 \), and \( \sigma = 5 \). Show more…
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