I don't know what im doing help

Reasoning:

According to exponent law:

Now apply this to your problem.

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

the two may have that, even a breakdown is probably offered