Question

State any four properties of normal distribution.

Answer 1

Answer:

The following are the properties of normal distribution is :

1)The normal curve is symmetrical about the mean μ;

2) The mean is at the middle and divides the area into halves;

3) The total area under the curve is equal to 1;

4) It is completely determined by its mean and standard deviation σ (or variance σ2)

• Note:

1)In a normal distribution, only 2 parameters are needed, namely μ and σ2.

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