Question

3. a
155 - 160
160 - 165
The heights of boys in a school are given below:
Height (in cm) 140 - 145 145 - 150 150 - 155
Number of boys
32
16
Draw a frequency polygon to represent the above data
20
PEI
4. Draw a frequency polygon to represent the following data :
35 - 40
40 - 45
45 - 50
50 - 55
55 - 60
as Area
trape
No. of workers
6
17
30
8
3
Draw a frequency polygon to represent the following data:
750 - 850 850 - 950 950 - 1050 1050 - 1150 1150 - 1250
52
41
65
54
38
Himt. Along -ans, take 1 cm = 100.
Along y-axis, take 2 cm = 10 workers.]
figures
curu
Construct a frequency polygon from the following data:
are so
1 - 5
6 - 10
11 - 15
16 - 20
21 - 25
5
8
12
4
Hint. Take the class-intervals as 0.5 -5.5: 5.5 - 10.5; 10.5 - 15.5; 15.5 - 20.5, 20.5 - 25.5
and 25.5 - 30.5 with frequencies 5, 8, 12, 7. 4 and 0 respectively i.e. convert it to exclusive​

Answer 1

Answer:

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