Answer :
[tex]\begin{gathered} part\text{ b} \\ A) \\ The\text{ value of the mean is \$ 344.995} \\ B)\text{ } \\ \text{Median}=Li+\frac{\frac{N}{2}-F_{i-1}}{fi}\cdot a_i \\ N=30 \\ \frac{N}{2}=15 \\ ai=399.99-350=49.99 \\ \text{Median}=350-\frac{15-13}{11}\cdot49.99 \\ \text{Median = 340.9} \\ \text{The value of the median is \$340.9} \end{gathered}[/tex]

