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Question
The following table gives the life time of 200 neon lamps. Find the median class.
The Following Table Gives The Life Time Of 200 Neon Lamps. F...
Options:
A .  2500 - 3000
B .  1000 - 1500
C .  1500 - 2000
D .  3000 - 3500
Answer: Option A
:
A
The Following Table Gives The Life Time Of 200 Neon Lamps. F...
The median class is identified as the class whose cumulative frequency will be greater than n2, where 'n' is the sum of the frequencies. (n=200).
Next, we divide 200 by 2.
n2=2002=100
We now locate the class whose cumulative frequency is greater than 100.
"2500 - 3000" is the class whose cumulative frequency 155 is greater than 100.
The median class is 2500 - 3000.

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