Instruction 2 -Referring to Instruction 2

Short Answer

Instruction 2.6
The frequency distribution below represents the rents of 250 randomly selected federally subsidised apartments in Sydney.
$$\begin{array} { | l | l | } \hline \text {Rent in } \$ & \text { Frequency } \\\hline 300 \text { but less than } 400 & 113 \\\hline 400 \text { but less than } 500 & 85 \\\hline 500 \text { but less than } 600 & 32 \\\hline 600 \text { but less than } 700 & 16 \\\hline 700 \text { but less than } 800 & 4 \\\hline\end{array}$$
-Referring to Instruction 2.6,the class mid-point of the second class is_________.