Q. 155.0( 1 Vote )

# The blood group of 30 students of a class were recorded as under: If a students of this class is chosen at random, What is the probability that the chosen students has blood group(i)0? (ii) A? (iii) AB?

(i) O

Total number students= 30

Number of students with blood group ‘A’ = 9

Number of students with blood group ‘B’ = 11

Number of students with blood group ‘AB’ = 4

Number of students with blood group ‘O’ = 6

Probability P() = (i) Probability of selecting a student with blood group ‘o’

P(B) = (ii) Probability of selecting a student with blood group ‘A’

P(B) = (iii) Probability of selecting a student with blood group ‘AB’

P(B) = Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos  Champ Quiz | Basics of Probability36 mins  Quiz | Calculating Probability39 mins  NCERT | Critical Thinking Problems in Probability39 mins  RD Sharma | Extras on Probability45 mins  RD Sharma | IMP Qs Discussion on Probability43 mins  Concept of Probability36 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation view all courses 