In the standard normal distribution formula given above, It is possible to change each normal random variable X into a z score through the following standard normal distribution formula
The random variable of a standard normal curve is known as the standard score or a Z-score. The mean of standard normal distribution is always equal to its median and mode. It appears when a normal random variable has a mean value equals zero and the value of standard deviation equals one.
The standard normal distribution is a type of normal distribution.