Thank you for making this lecture very easy to understand. However, I observe from my calculation that the denominator in the example given is 94months instead of 84 which was used. =(1x6)+(2x2)+(3x2)+(4x2)+(5x2)+(6x10) =6+4+6+8+10+60 =94 Thank you
please continue adding videos, they are really helpfull for a lot of medical students. Epidemiology and Biostatistics can be sometimes really confusing and these lectures are helping a lot. thanks again!