alleryStart learning →The standard normal distribution has which mean and standard deviation?
AMean 1, standard deviation 0
BMean 0, standard deviation 0
CMean 0, standard deviation 1
DMean 1, standard deviation 1
Answer & Solution
Correct answer: C. Mean 0, standard deviation 1
1. The standard normal is the one special curve every other normal can be turned into.
2. Its mean is set at 0, so the centre of the curve sits at zero.
3. Its standard deviation is set at 1, so one step out from the centre is one unit.
4. A standard deviation of 0 would mean no spread at all, which is not a curve.
_Source: OpenStax High School Statistics (CC BY 4.0), section 6.1 The Standard Normal Distribution_
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