The following table gives the life times of 400 neon lamps:

(i) Represent the given information with the help of a histogram.
(ii) How many lamps have a life time of more than 700 hours?"

AcademicMathematicsNCERTClass 9

Given:

The life time(in hours) of 400 neon lamps is given.

To do:

We have to 

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

(ii) The number of lamps that have a life time of more than 700 hours.

Solution:

(i) The histogram to represent the given data is as follows:

(ii) The number of lamps having a life time of more than 700 hours $= 74+62+48$

$= 184$

The number of lamps having a life time of more than 700 hours is $184$.

raja
Updated on 10-Oct-2022 13:47:17

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