Question

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5. The following table gives the distribution of the life-time of 400 neon lamps.
Lower boundary, 1 = 144.5
.. Median length
3000-
3500
3500-
4000
4000-
4500
4500-
5000
Life time 1500-2000-
2500-
(in hours) 2000 2500 3000
Number of
lamps
14 56 60
Find the median life-time of a lamp.
62
48
86
74
(AS
Median class
3000 - 3500​

Answer 1

Answer:

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