You can surely do this! First, find the mean of the 8 given scores. Add up these scores and then divide the result (sum) by 8 to obtain the mean.
raw score - mean The formula for "z-score" is z = ------------------------- std. deviation
You'll need to calculate the standard deviation of these 8 scores. 73 - mean Then, as an example: raw score 73 translates into z-score z = --------------- std. dev.
