what is the distribution of an equation? how do I find the normal distribution and standard deviation of a variable? what is the normal distribution of a variable x what is a distribution and standard deviation what is the standard deviation of an x in math a variable x has what which variable has a mean and standard deviation how to find the mean standard deviation of a normally distributed variable average mean and standard deviation what does f(x) mean and standard deviation mean how to find the standard deviation of x in sine and cosine what is the mean and standard deviation for p what is the distribution of the variable x when do you need to calculate the standard deviation of a variable what is the standard deviation of normally distributed variables what is the distribution of x what is the distribution of normal distribution what is the standard deviation in a normally distributed variable? what is the standard deviation and the mean? what are the distributions of the variable x?