henlo frens

in my data there are no median and mode, since my data is from a continuous space. So I can only take a sample say 100 historical periods to work with. Is it correct to infer the mode by :

Fake Mode = Mean - StandardDeviation * Skewness

minus because negative skewness means the mode is larger than the mean. Also is it correct to assume the median is just the average of mean and mode?