Question

X is taking up subjects Mathematics, Physics and Chemistry in the examination. His
probabilities of getting grade A in these subjects are 0.2, 0.3 and 0.5 respectively. Find the
probability that he gets
(1) Grade A in all subjects (ii) Grade A in no subject (ii) Grade A in two subjects.​

Answer 1

Step-by-step explanation:

X is taking up subjects Mathematics, Physics and Chemistry in the examination. His

probabilities of getting grade A in these subjects are 0.2, 0.3 and 0.5 respectively. Find the

probability that he gets

(1) Grade A in all subjects (ii) Grade A in no subject (ii) Grade A in two subjects.