Dr. caras was characterizing a cytochrome (an iron containing protein) from a new strain of bacteria. he obtained eight measurements of the percent iron in the protein: 0.2905%, 0.2905%, 0.2891%, 0.2897%, 0.3015%, 0.2899%, 0.2903%, and 0.2896%. calculate the mean ( x¯ ) and standard deviation ( ) for these results. dr. caras was characterizing a cytochrome (an iron containing protein) from a new strain of bacteria. he obtained eight measurements of the percent iron in the protein: 0.2905%, 0.2905%, 0.2891%, 0.2897%, 0.3015%, 0.2899%, 0.2903%, and 0.2896%. calculate the mean ( x¯ ) and standard deviation ( ) for these results.