12 people of a locality are asked about number of hours they spent in doing welfare work for
their colony. Their response was 5, 7, 3, 4, 3, 11, 2, 4, 8, 9, 6 and 4 hours respectively. Find the
) Mean, (ii) Median and (iii) Mode of hours spent per week in social work by them.
Answers
Answered by
7
Step-by-step explanation:
For Mean:
We know
Mean = Sum of observations/No. Of observations
=5+7+3+4+3+.......+4/12
=66/12
=5.5
For Median:
We know
Median=n+1/2 +1
=12+1/2 +1
=14/2
=7
And
For n/2
=12/2
=6
For Meadian :
Mode=5th term+6th term/2
=11+2/2
=13/2
=6.5
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