STA2023 280779 STATISTICS GB ... Lesson 4 - Descriptive (or Summary) Statistics Lesson 4 - Guided Learning Assi We are going to calculate the standard deviation for the following set of sample data. 1) First, calculate the mean. H = 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. x - ul 12 14 15 13 14 Total Standard deviation: E(x - 1)2 0 = Round to two decimal places N