Question

19. As a part of environment awareness programme, students collected the following data regarding number of plants in
the houses of a locality,
No. Of plants
0-2 2-4 4-6
6-8 8 - 10 10 - 12 12-14
No. Of Houses 1
2
1
5
6
2
3
i) Total number of houses in which data was collected is
a) S
b) 6
c) 10
d) 20
ii) The mean number of plants per house is
a) 5.15
b) 6.2
c) 7.5
d) 8.1
ii) The upper limit of modal class is
a) 9
b) 7
c) 10
d) 8
iv) The lower limit of median class is
a) 10
b) 6
c) 8
d) 9
v) Number of houses having more than 8 plants =
a) 5
b) 11
c) 9
d) 6​

Answer 1

Answer:

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