in physics examination the mean grade is 80 and the standard deviation is 5?
find the corresponding z score of the students to get a score of 95 and 60
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How do you calculate the z-score? The formula for calculating a z-score is is z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation. As the formula shows, the z-score is simply the raw score minus the population mean, divided by the population standard deviations
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