How Do You Test If Data Is Normally Distributed? The most common graphical tool for assessing normality is the Q-Q plot. In these plots, the observed data is plotted against the expected quantiles of a normal distribution. It takes practice to read these plots. In theory, sampled data from a normal distribution would fall along
Why Is The Total Area Under The Curve Equal To 1? The total area under the curve for any pdf is always equal to 1 , this is because the value of a random variable has to lie somewhere in the sample space. In other words, the probability that the value of a random variable
Can You Use A Normal Distribuiton On Non Normal Fish? An extreme example: if you choose three random students and plot the results on a graph, you won’t get a normal distribution. You might get a uniform distribution (i.e. 62 62 63) or you might get a skewed distribution (80 92 99). If you are