Wks 02, Chapters 3 _____________,_______________,_________ Surname(e.g. Straayer), Given Name(e.g. Dave), class mtg. time Begin with a subset of thumb data taken in a Statistics class, below. Begin by filling in the Sum and Mean of the original data. Data 65 55 63 65 67 68 61 63 58 56 Then fill in the deviation column. Each deviation is <data value> - <mean> Calculate the sum of these numbers and fill in. If it isn’t zero, it should be very close. Now, for each deviation, square it, and fill in the Deviation^2 column. Add up and get a sum of the squared deviations. Record it in the “Sum:” row. Now, calculate the Mean of the squared deviations, in an odd way. Instead of dividing by the count, n, divide by (n-1). There is a reason for that, but for now, just take my word. Deviation Deviation^2 Sum: Mean: Std. Dev Finally, calculate the standard deviation by taking the square root of the “slightly different mean” of the squared deviations, and fill that in.