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REVENUE OFFICER Numerical Ability - Probability Questions with Answers

(#M40037554) REVENUE OFFICER QUESTION Keep an EYE

the following tables gives the life time of 500 CFL lamps
Life time : 9,10,11,12,,13,14,more than 14
No of lamp: 26, 71,82,102,89,77,53
total : 500
a bulb is selected at random . the probabilty that the life time fo the selected bulb is atmost 11 months is given by

Asked In REVENUE OFFICER subash (10 years ago)

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