Question

If a student can solve 80% problems of a given
book and another student can solve 40% of
them. Find the probability that both of them will
solve a problem selected at random :
(a) 0.32
(b) 0.33 (c) 0.31 (d) 0.38
لے​

Answer 1

Answer:

(a) = 0.32

Step-by-step explanation:

For this , the required formula of probability is,

P( A intersection B)

Also these are independent events. So,

=> P(A intersection B) = P(A) ×P(B)

=> (80/100) × (40/100)

=> 3200/10000

=> 0.32 , this is the required answer .

Thank you.