Can any one of you help me with formulaes I need to know to solve standard deviation, mean , median problems
I ran ito a question in GMAT PREP
Given Mean and values that are 2 SD below the mean and 1 SD above the mean.. What is the value of the median..
I saw the same question solved in the GMATCLUB but cant seem to find it..
Learn the bell curve to understand the nuisances of SD