How do I know if my data have a normal distribution?

Properties of a Normal Distribution · The normal curve is symmetrical about the mean; · The mean is at the middle and divides the area into two halves; · The

Standard normal distribution can be used to solve problems related to probabilities of events occurring The area under the curve of the standard normal

normal distribution A normal quantile plot shows a normal distribution as a straight line instead of as a bell curve If your data are normal, then the data values will fall close

normal distribution In a normal distribution, data is symmetrically distributed with no skew and follows a bell curve