The death rate from a particular form of cancer is 23% during the first year. when treated with an experimental drug, only 15 out of 84 patients die during the initial year. is this strong evidence to claim that the new medication reduces the mortality rate?

Which of the following accounts for someone who has had regular herpesvirus-mediated cold sore or genital sore flare-ups? a) re-infection by a closely related herpesvirus of a different strainb) re-infection by the same herpesvirus strainc) copies of the herpesvirus genome permanently maintained in host nucleid) copies of the herpesvirus genome permanently maintained in host cell cytoplasm