seeurrence of one affects the other the Two events are said to be disjoint(mutua

Question

seeurrence of one affects the other the Two events are said to be disjoint(mutually exclusive) if 2there is no overlap between the two events there is overlap between the two events "????? the occurrence of one does not affect the other the occurrence of one affects the other 2 You roll a die twice and record their sum. Let A- get a sum of 6 B- roll an even number on the first rolh 2 pute P( A and B) do 2/36 2C 05 10140 10 Suppose that events A and B are independent with P(A)-5 and P(B)-A Compute P( A or B) 0.9 0.7 0.6 1.0

Explanation / Answer

8) mutually exclusive when p( A and B) =0

Option A) is correct

9)

P( A and B)

(2,4),(4,2) are only options

Hence probability=2/36

10)

P(A and B) = p(A)*p(B) { When independent}

= 0.5*0.4=0.2

P( A or B)= P( A) + P(B) - P( A and B)

= 0.5+0.4-0.2

=0.7

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