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The following table gives the distributi...

The following table gives the distribution of the life time of `400` neon lamps Find the median life of a lamp.

Text Solution

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Median class = `3000-3500`
`l=3000`
`h=500`
`cf=130`
`f=86`
Median=`l+((n/2)-cf)/86*500`
=`3000+(200-130)/86*500`
=` 3406.98 hours`
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