1.

The blood groups of 30 students of class IX are recorded as follows: A B O O AB O A O B A O B A O O A AB O A A O O AB B A O B A B O A student is selected at random from the class from blood donation, Fin the probability that the blood group of the student chosen is:(i) A(ii) B(iii) AB(iv) O

Answer» The blood groups of 30 students of class IX are recorded as follows:





































A B O O AB O A O B A O B A O O
A AB O A A O O AB B A O B A B O



A student is selected at random from the class from blood donation, Fin the probability that the blood group of the student chosen is:

(i) A

(ii) B

(iii) AB

(iv) O


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