Statistical methods are no substitute for common sense. Comment with examples from your daily life.
Describe in detail: Separation of different components of a mixture, different types of separation methods, and their use in daily life.
A nationalized bank has found that the daily balance available in its savings accounts follows a normal distribution with a mean of Rs. 500 and a standard deviation of Rs. 50. The percentage of savings account holders, who maintain an average daily balance more than Rs. 500 is ______.