Calculating Standard Deviation Calculate the standard deviation of a given data set using the standard deviation formula or Excel. Consider the following data set with a mean of 12: 9, 11, 12, 16 Using the equation below or the standard deviation formula in Excel, calculate the standard deviation for this data set. Answer choices are rounded to the hundredths place. s equals square root of fraction numerator 1 over denominator n minus 1 end fraction sum from i equals 1 to n of open parentheses X subscript i minus X with bar on top close parentheses squared end root a.) 1.54 b.) 5.09 c.) 2.94 d.) 2.55 SUBMIT MY ANSWER Report an issue with this question Ryan Backman Ryan Backman Sophia Sophia Katherine Williams Katherine Williams Jonathan Osters Jonathan Osters Calculating Standard Deviation Sophia Sophia Make my favorite instructor PDF Version WHAT'S COVERED This tutorial will explain the concept of standard deviation. Our discussion breaks down as follows