1.

The following table gives the life times of neon lamps: Length (in hours) Number of lamps 300 − 400 400 − 500 500 − 600 600 − 700 700 − 800 800 − 900 900 − 1000 14 56 60 86 74 62 48 (i) Represent the given information with the help of a histogram.(ii) How many lamps have a lifetime of more than 700 hours?

Answer»

The following table gives the life times of neon lamps:















Length (in hours)



Number of lamps



300 − 400



400 − 500



500 − 600



600 − 700



700 − 800



800 − 900



900 − 1000



14



56



60



86



74



62



48




(i) Represent the given information with the help of a histogram.



(ii) How many lamps have a lifetime of more than 700 hours?



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