True statement about standard normal curve:
(Refer: K. Park’s Textbook of Preventive and Social medicine, 24th edition, pg no:886 )
Normal distribution

Gaussian / Standard distribution
Symmetric with respect to same mean, median & mode & frequencies tapers off rapidly and symmetrically on both sides
Equal distribution on either side of the curve
The total area under the curve is 2
Its mean is 1
Standard deviation is 0