Section 4.3 - MATH 2311 Section 4.3 Standard Normal...

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MATH 2311Section 4.3
Standard Normal CalculationsAs suggested in the previous section, all normal distributions share many common properties. In fact, if change the units to σ and center the graph at μ=0, all normal distributions would be exactly the same. This is called standardizing. If x is an observation from a normal distribution with mean μ and standard deviation σ, the standardized value of x is called the z-score and is computed with the formula below.
Example:Bon took the ACT and scored 31. Craig took the SAT and scored (CR+M) 1390. If both tests are normally distributed, who did better? The ACT
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