In a study of diabetic patients in a village, the following observations were noted. Age in years10−2020−3030−4040−5050−6060−70Number of patients25121994 Represent the above data by a frequency polygon.

In a study of diabetic patients in a village, the following observatio

1.	In a study of diabetic patients in a village, the following observations were noted. Age in years10−2020−3030−4040−5050−6060−70Number of patients25121994 Represent the above data by a frequency polygon.
Answer» In a study of diabetic patients in a village, the following observations were noted. $\begin{matrix} Age in years & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 & 50 - 60 & 60 - 70 Number of patients & 2 & 5 & 12 & 19 & 9 & 4 \end{matrix}$ Represent the above data by a frequency polygon.