please help

We are going to calculate the standard deviation for the following set of sample data. 3,6,9, 13,2 1) First, calculate the mean. 2) Fill in the table below. Fill in the differences of each data value from the mean, then the squared differences. 3) Calculate the standard deviation. T (x - I)2 N Total Standard deviation: E(x - 1)2 Round to two decimal places n - 1