## aaronq Group Title A coating that weighs at least 3 mg is needed to impart adequate shelf life to pharmaceutical tablet. Random sampling of 250 tablets revealed that 14 failed to meet this requirement. a) use this info to estimate the relative standard deviation for the measurement 2 years ago 2 years ago

1. aaronq

does anyone know how to calculate standard deviation with this information alone? i know RDS = $\frac{ s }{\bar x} (100%)$