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The following table shows the blood groups of 40 students of a class.

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The following table shows the blood groups of 40 students of a class. Blood group A B O AB Number of students 11 9 14 6 One student of the class is chosen at random. What is the probability that the chosen student has blood group (i) O? (ii) AB? Select the correct answer from above options

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It is given that Total number of students = 40 (i) We know that Number of students having blood group O = 14 So we get Required probability = number of students having blood group O/ Total number of students By substituting the values Required probability = 14/40 = 0.35 (ii) We know that Number of students having blood group AB = 6 So we get Required probability = number of students having blood group AB/ Total number of students By substituting the values Required probability = 6/40 = 0.15

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