Class 8 TN Maths 6. STATISTICS Exercise 6.2 7. In a study of dental problem, the following
Class 8 TN Maths 6. STATISTICS
Exercise 6.2
7. In a study of dental problem, the following data were obtained.
Ages 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80
No. of patients 5 13 25 14 30 35 43 50
Represent the above data by a frequency polygon.