Instruction 3-8
Given Below Is the Frequency Distribution of the Number

Short Answer

Instruction 3-8
Given below is the frequency distribution of the number of defective tomatoes in 50 different shipments.
$$\begin{array} { | c | c | } \hline \text { Defective Items } & \text { Frequency } \\\hline 0 \text { but less than } 5 & 35 \\\hline 5 \text { but less than } 10 & 7 \\\hline 10 \text { but less than } 15 & 5 \\\hline 15 \text { but less than } 20 & 2 \\\hline 20 \text { but less than } 25 & 1 \\\hline 25 \text { but less than } 30 & 0 \\\hline\end{array}$$
-Referring to Instruction 3-8,what is the approximate variance?