At one college, GPAs are normally distributed with a mean of 2.6 and a standard deviation of 0.4. What percentage of students at the college have a GPA between 2.2 and 3? 68% 95% 84.13% 89%
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The z-score is a measure of how many standard deviations an element is from the mean. The formula for calculating a z-score is: Z = (X - μ) / σ Where: X is the value of the element μ is the population mean σ is the standard deviation For 2.2 GPA: Z1 = (2.2 - Show more…
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