OK, NSS...here's the procedure....
1. [ Add all the data and divide by 24] ...this gives us the mean
2. Using each data point....... take this data point and subtract the mean from it....square this result
For instance.... we would calculate (182 - mean)^2 = something
Note...that this will be a little lengthy because we must do this 24 times...once for each data point
3. Add all 24 of the values you find and divide by the number of data points (24)...... this will be the variance
4. Take the square root of this result....this will be the standard deviation...!!!
