[SOLVED] Standard error 1. The problem statement, all variables and given/known data A student determined the following values for the wave speed; calculate the average value of the wave speed and its standard error 50.8, 50.6, 51.8, 52.0, 50.9, 51.6, 51.3, 51.5 2. Relevant equations avg wave speed = 51.3 3. The attempt at a solution how do i get the standard error? the answer is (51.3+/-0.2) i am aware that Se = standard deviation / sqrt(number of data) but i'm not sure how to get standard deviation. any help would be greatly appreciated, thank you.