Estimate the mean, standard deviation, and median for the given grouped data. Adjust class boundaries to be continuous. Augmented table required.

To estimate the mean, standard deviation, and median for the given grouped data, we first need to determine the class midpoints and cumulative frequencies. We will also adjust the class boundaries to be continuous.

Here's the augmented table:

\begin{array}{|c|c|c|c|c|c|c|} \hline Class Boundaries & True Class Limits & Frequency (f_i) & Midpoint (x_i) & f_i x_i & Cumulative Frequency (C_f) & f_i x_i^2 \\ \hline 151-160 &