Q. 24.4( 148 Votes )

Determine the modal lifetimes of the components

Answer :

As per the question:

Modal class = 60-80

l = 60

h = 20

f_{1} = 61

f_{0} = 52

f_{2} = 38

Or Mode = 60 + 5.625

or Mode = 65.62

Thus, the modal lifetime of 225 electrical components is 65.62 hours

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