Q. Jinza Bruno is going to help his brother who wants to open a food store. Jinza initially believes that there is a 50-50 chance that his brother’s food store would be a success. Jinza is considering doing a marketing research will be favourable given a successful food store. Moreover, there is a 0.7 probability that the marketing research will be unfavourable given an unsuccessful food store.
(a) If the marketing research is favourable, illustrate what is Jinza's revised probability of a successful food store for his brother?