1
GATE CSE 1995
MCQ (Single Correct Answer)
+1
-0.3
The probability that a number selected at random between $$100$$ and $$999$$ (both inclusive ) will not contain the digit $$7$$ is
A
$${{16} \over {25}}$$
B
$${\left( {{9 \over {10}}} \right)^3}$$
C
$${{27} \over {75}}$$
D
$${{18} \over {25}}$$
2
GATE CSE 1994
MCQ (Single Correct Answer)
+1
-0.3
Let A and B be any two arbitrary events, then, which one of the following is true?
A
$$P\,(A\, \cap \,B)\, = \,P\,(A)\,P\,(B)$$
B
$$P\,(A\, \cup \,B)\, = \,P\,(A)\, + \,P\,(B)$$
C
$$P\,(A\,\left| {B) = \,} \right.P\,(A\, \cap \,B)\,P\,(B)$$
D
$$P\,(A\, \cup \,B)\, < \,\,P\,(A)\, + \,P\,(B)$$
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