alleryStart learning →Converting to the standard normal distribution lets you:
AChange the population mean
BRemove all the variation
CMake the data symmetric
DCompare normal probabilities
Answer & Solution
Correct answer: D. Compare normal probabilities
1. Two normal distributions with different means and spreads cannot be compared directly.
2. Standardising expresses each value as a number of standard deviations.
3. You compare normal probabilities by converting to the standard normal distribution.
4. Standardising rescales the data; it does not remove variation or create symmetry.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 6 'The Normal Distribution', sections 6.1-6.3_
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