True statement about standard normal curve:: (A) Equal distribution on either side of the curve, (B) The total area under the curve is 2, (C) Its mean is 1, (D) Standard deviation is 0
Answer is A. (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