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Byju's Answer
Standard VIII
Mathematics
Exclusive & Inclusive Form
Obtain the me...
Question
Obtain the mean of the following distribution:
Variable (x
i
)
4
6
8
10
12
Frequency (f
i
)
4
8
14
11
3
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Solution
We know that,
Mean =
∑
x
i
f
i
∑
f
i
For the following data:
Variable (x
i
)
4
6
8
10
12
Frequency (f
i
)
4
8
14
11
3
Mean =
4
×
4
+
6
×
8
+
8
×
14
+
10
×
11
+
12
×
3
4
+
8
+
14
+
11
+
3
=
16
+
48
+
112
+
110
+
36
40
=
322
40
= 8.05
Hence, the mean of the following distribution is 8.05 .
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