For two events R and S, let P(R) = 0.4, P(S) = p and P(R ∪ S) = 0.6. Then p equals

0.2, when R and S are independent

0.2, when R and S are mutually disjoint

0.2, when R and S are dependent

For two events R and S, let P(R) = 0.4, P(S) = p and P(R ∪ S) = 0.6.

1.	For two events R and S, let P(R) = 0.4, P(S) = p and P(R ∪ S) = 0.6. Then p equals
A.	0.2, when R and S are independent
B.	0.2, when R and S are mutually disjoint
C.	Not determined in any case
D.	0.2, when R and S are dependent
Answer» C. Not determined in any case

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For two events R and S, let P(R) = 0.4, P(S) = p and P(R ∪ S) = 0.6. Then p equals

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