Question 27 In a medical examination of students of a class, the following blood groups are recorded. Blood groupAABBONumber of1013125students A student is selected at random from the class. The probability that he/she has blood group B is: A) 14 B) 1340 C) 310 D) 18

Question 27 In a medical examination of students of a class, the follo

1.	Question 27 In a medical examination of students of a class, the following blood groups are recorded. Blood groupAABBONumber of1013125students A student is selected at random from the class. The probability that he/she has blood group B is: A) 14 B) 1340 C) 310 D) 18
Answer» Question 27 In a medical examination of students of a class, the following blood groups are recorded. $\begin{matrix} B l o o d g r o u p & A & A B & B & O N u m b e r o f & 10 & 13 & 12 & 5 s t u d e n t s \end{matrix}$ A student is selected at random from the class. The probability that he/she has blood group B is: A) $\frac{1}{4}$ B) $\frac{13}{40}$ C) $\frac{3}{10}$ D) $\frac{1}{8}$