A study has been carried out during from January 1, 2010 to December 31, 2014. It reported data on the infection and induction times for 50 subjects for a particular disease. Time of Time between Number of Infection infection and of subjects (in years) induction (in years) 0 0 10 2 2 8 Estimate the conditional probability that the time between infection and induction is less than 2 years, given that it is less than 4 years