Monthly revenues for a sample of 40 fast food locations showed the following: Calculate u salpe IIIeal ald the median Mean =557.7. Median =559 Mean =559. Median =557.7 Mean =557.7. Median =551 Mean =557.7. Median =567 Monthly revenues for a sample of 40 fast food locations showed the following: Ubtain the sample variance and the sample standard deviation Sample Variance =76208.6 Sample Standard Deviation =279.5 Sample Variance =76208.6 Sample Standard Deviation =276.1 Sample Variance =78162.7 Sample Standard Deviation =276.1 Sample Variance =78162.7 Sample Standard Deviation =279.5