Calculating Standard Deviation

Calculate the standard deviation of a given data set using the standard deviation formula or Excel.

Consider the following data set that has a mean of 8:

6, 7, 9, 10

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.

• a.)
• 1.83
• b.)
• 3.16
• c.)
• 0.95
• d.)
• 1.58