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Praxis Core
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Recognize and Standardize Normal Distributions
Grade Level
Praxis Core
5165.269 Recognize and Standardize Normal Distributions
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Which procedure correctly uses a standard normal table to answer a question about a raw value from a normal distribution?
A
Use the median as the standard deviation and look up the result.
B
Look up the raw value directly in the table without changing units.
C
Divide the raw value by the percentile, then use the empirical rule only.
D
Convert the raw value to z = (x - mean) / standard deviation, then use the table for that z-score.
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