Lake Tahoe Bicycle Coalition â Bikeway 2016. Bike the West & Americaâs Most Beautiful Bike Ride continues to promote the Lake Tahoe Bikeway, in conjunction with the Lake Tahoe Bicycle Coalition.
Thus based on the data in the sample an sich (as calculated by a test for normality), it is unlikely that the sample is part of a normal distribution, but we already know it is part of a normal distribution, because it's part of population that is normally distributed.
Once standardized, a normally distributed random variable has a mean of zero and a standard deviation of one. The standard normal distribution (Z distribution) is shown in the graph below. As you can see from the notation to the right of the curve, mz = 0 and sz = 1.earn How to Calculate the Mean of a Standard Normal Distribution. To see how a random variable is standardized, imagine you have a random variable, x, that is normally distributed with a mean of 20 and a standard deviation of 10.