The ages (in years) of 360 patience treated in a hospital on a particular day are given below. Age in years 10-20 20-30 30-40 40-50 50-60 60-70 Number of patients 90 40 60 20 120 30 Draw a histogram and a frequency polygon on the same graph to represent the above data.

Question

Philoid · Accepted Answer

We take imagined class 0 – 10 and 70 – 80, each with frequency zero. The class marks of above classes are 5 and 75 respectively.

So, we plot the points A (5,0) and B (75,0). We join A with the midpoint of the top of the first rectangle and B with the mid-point of the last rectangle.

Thus we obtain a complete frequency polygon,

Age in years	10-20	20-30	30-40	40-50	50-60	60-70
Number of patients	90	40	60	20	120	30

The ages (in years) of 360 patience treated in a hospital on a particular day are given below.Age in years10-2020-3030-4040-5050-6060-70Number of patients9040602012030Draw a histogram and a frequency polygon on the same graph to represent the above data.

The ages (in years) of 360 patience treated in a hospital on a particular day are given below.

Age in years

10-20

20-30

30-40

40-50

50-60

60-70

Number of patients

90

40

60

20

120

30

Draw a histogram and a frequency polygon on the same graph to represent the above data.