The times (in seconds) taken by 150 athelets to run a 110 m hurdle race are tabulated below
Class13.8−1414−14.214.2−14.414.4−14.614.6−14.814.8−15Frequency245714820
The number of atheletes who completed the race in less than 14.6 seconds is
82
The number of atheletes who completed the race in less than 14.6 seconds
= 2 + 4 + 5 + 71
= 82