Recall the standard deviation of the BMI values you found in #5 and square this to compute the variance of the BMI values.BMI and the variability of BMI values across the entire sample of 311 observations. The mean BMI of -0.97 indicates the average position relative to a reference point (which is not specified but typically would be a zero point or a population mean), and the standard deviation of 2.18 indicates that the BMI values typically vary by 2.18 units from the mean inBMI and the variability of BMI values across the entire sample of 311 observations. The mean BMI of -0.97 indicates the average position relative to a reference point (which is not specified but typically would be a zero point or a population mean), and the standard deviation of 2.18 indicates that the BMI values typically vary by 2.18 units from the mean in