The following table gives the life times of 400 neon lamps: Life time (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 life time of more than 700 hours?

Question

The following table gives the life times of 400 neon lamps: Life time (in hours) Number of lamps 300 - 400 400 - 500 500 - 600 600 - 700 700 &#x2013; 800 800 &#x2013; 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 life time of more than 700 hours?

Philoid · Accepted Answer

The parts of the questions are solved below:

(i) The above given information is represented with the help of histogram below:

(ii) 74 + 62 + 48 = 184

Hence, 184 lamps have a life time of more than 700 hours.