 Hi and how are you all today? The question says in question 1 exercise 14.2 you are asked to prepare frequency distribution table regarding the blood groups of 30 students of a class. Use this table to determine the probability that a student of this class selected at random has blood group A, B. So the information which is given to us in this question said there were four blood groups which were given to us and the number of students. Here we were given that blood group A, the number of students are 9, for B it was 6, for O it was 12 and for blood group A, B there were three students. So there were a total of 30 students. Now we need to find out that the probability that a student blood group A, B. So these students out of 30 students were having blood group as A, B. On simplifying we get 1 by 10 and that is our required probability. Right? This ends my session and exercise 2. Hope you enjoy it and have a very nice day. Bye for now.