Question: what is the difference between a normal curve and a standard normal curve?
Answer: STANDARD NORMAL DISTRIBUTION HAS A MEAN OF ZERO AND A STANDARD DEVIATION OF 1. A NORMAL DISTRIBUTION CAN HAVE ANY REAL VALUES FOR THE MEAN AND STADARD DEVIATION. ... A normal distribution has a mean of 62.4. What is its standard deviation if 20.05% of the area under the normal curve lies to the right of 72.9?