When you say âPower Rangersâ this is what 95% of people my age will immediately think of. Power Rangers Zeo (1996). I have some vague recollection of this, but remember thinking it wasnât as cool as the original. Power Rangers Turbo (1997). Pretty sure I had at least one of these action figures because my parents didnât know the difference between the series.
A normal distribution with a mean of 0 and a standard deviation of 1 is called a standard normal distribution. Areas of the normal distribution are often represented by tables of the standard normal distribution. A portion of a table of the standard normal distribution is shown in Table 1. Table 1.
For example, in the population {4, 8}, the mean is 6 and the deviations from mean are {-2, 2}. Those deviations squared are {4, 4} the average of which (the variance) is 4. Therefore, the standard deviation is 2. In this case 100% of the values in the population are at one standard deviation of the mean. The standard deviation is the most common measure of statistical dispersion, measuring how widely spread the values in a data set are. If the data points are close to the mean, then the standard deviation is small.