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The following table gives the life ti...

The following table gives the life time of 400 neon lamps: Life time (in hours 300-400 400-500 500-600 600-700 700-800 800-900 900-1000 No. of lamps: 14 56 60 86 74 62 48 A bulb is selected at random. Find the probability that the life time of the selected bulb is : less than 400 between 300 to 800 hours at least 700 hours.

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The following table gives the life time of 400 neon lamps: Life time (in hours 300-400 400-500 500-600 600-700 700-800 800-900 900-1000 No. of lamps: 14 56 60 86 74 62 48 A bulb is selected at random. Find the probability that the life time of the selected bulb is : (i)less than 400 (ii)between 300 to 800 hours (iii)at least 700 hours.

The following table gives life time of 400 neon lamps: A bulb is selected at random. Find the probability of that the life time of the selected bulb is less than 500 hours.

The following table gives life time of 400 neon lamps: A bulb is selected at random. Find the probability of that the life time of the selected bulb is between 400 to 900 hours.

The following table gives life time of 400 neon lamps: A bulb is selected at random. Find the probability of that the life time of the selected bulb is atleast 800 hours.

The following table gives the life times of 400 neon lamps: How many lamps have a life time of more than 700 hours?

The following table gives the life times of 400 neon lamps : : How many lamps have a life time of more than 700 hours ?

The following table gives the life times of 400 neon lamps : (ii) How many lamps have a life time of more than 700 hours ?

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

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

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