PDF chapter test TRY NOW

The following table gives the life times of \(400\) neon lamps:
 
Life time (in hours) Number of lamps
\(300-400\) \(14\)
\(400-500\) \(56\)
\(500-600\) \(60\)
\(600-700\) \(86\)
\(700-800\) \(74\)
\(800-900\)
\(62\)
\(900-1000\) \(48\)
 
(i) Represent the given information with the help of a histogram.
 
(ii) How many lamps have a lifetime of more than \(700\) hours?
 
Important!
This is a self assessment task. Solve this question and assess the solution steps after the completion of test on your own.