ANSWER IS 8.1 PLANTS
Step-by-step explanation:
ACCORDING TO SUM
No. of plants No. of houses x
i
f
.x
0-2 1 1 1
2-4 2 3 6
4-6 1 5 5
6-8 5 7 35
8-10 6 9 54
10-12 2 11 22
12-14 3 13 39
Σf
=20 Σf
=162
Mean=
Σfi
=
20
162
=8.1plants
We used direct method for finding the mean as the width of the class is very small and also the frequency for each class have very small values. Thus, it will be easy to calculate.
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Answers & Comments
ANSWER IS 8.1 PLANTS
Step-by-step explanation:
ACCORDING TO SUM
No. of plants No. of houses x
i
f
i
.x
i
0-2 1 1 1
2-4 2 3 6
4-6 1 5 5
6-8 5 7 35
8-10 6 9 54
10-12 2 11 22
12-14 3 13 39
Σf
i
=20 Σf
i
.x
i
=162
Mean=
Σfi
Σf
i
.x
i
=
20
162
=8.1plants
We used direct method for finding the mean as the width of the class is very small and also the frequency for each class have very small values. Thus, it will be easy to calculate.