CBSE Class 12science Maths Probability
 Assuming the probability of a male birth as 1/2, find the probability that a family of 3 children will have: a) two boys and one girl b) at most two girls

Plz answer 8 b part

20th sum plz

14th sum and plz explain its statement

21st sum plz
 four digit numbers are formed by using the digit 1,2,3,4 and 5 without repppearing any digit. Find the probability that a number chosen at random is an odd number
 Define conditional probability
 If A and B are two events such that P(A) = 0.4, P(B) = 0.55 and _{}= 0.7. Then find P(A  B) and P(B  A).
 If A and B are two events such that 2P(A) = P(B) = 4/13 and P(A  B) = 3/7, then P(A _{}B) = â€¦â€¦
 Let A and B be events of a sample space S of an experiment, then show that _{}