chemistry
posted by joanne .
#1 A pipet delivers 10.5, 10.3, 10.9 and 10.7 ml (a) find the mean volume and deviation from the mean for each and calculate the average deviation from the mean (b) calculate the relative deviation (in %) for this set of data. Relative deviation (%) = (average deviation from the mean / the )

Look in your text/notes for the formula for each. For mean, for example, it is (10.5 + 10.3 + 10.9 + 10.7)/4 = ?