Question

Number of members in 15 families in Bihar is given below Prepare frequency table and find mean of members
1, 6, 5, 4, 3, 2, 7, 2, 3, 4, 5, 6, 4, 6, 2​

Answer 1

Answer:

2

Step-by-step explanation:

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Answer 2

The numbers of members in the 40 families in Bhilar are as follows: 1, 6, 5, 4, 3, 2, 7, 2, 3, 4, 5, 6, 4, 6, 2, 3, 2, 1, 4, 5, 6, 7, 3,

4, 5, 2, 4, 3, 2, 3, 5, 5, 4, 6, 2, 3, 5, 6, 4, 2. Prepare a frequency table and find the mean of members of 40 families.

Medium

Solution

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Step 1: Mean of Discrete Frequency Data.

No of members

(x

i

)

No. of families

(f

i

)

f

i

x

i

1 2 2

2 8 16

3 7 21

4 8 32

5 7 35

6 6 36

7 2 14

N=40

∑f

i

x

i

=156

Mean=

40

156

=3.9 [∵Mean=

N

∑f

i

x

i

]

Hence, Mean of members of 40 families is