1. A
   1 only
2. B
   2 only
3. C
   Both 1 and 2
4. D
   Neither 1 nor 2

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1. A
   $\dfrac{1}{6}$
2. B
   $\dfrac{1}{4}$
3. C
   $\dfrac{1}{3}$
4. D
   $\dfrac{5}{12}$

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1. A
   $\dfrac{1}{6}$
2. B
   $\dfrac{1}{4}$
3. C
   $\dfrac{1}{3}$
4. D
   $\dfrac{1}{2}$

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1. A
   $\dfrac{1}{12}$
2. B
   $\dfrac{3}{4}$
3. C
   $\dfrac{1}{15}$
4. D
   $\dfrac{1}{9}$

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1. A
   40
2. B
   45
3. C
   50
4. D
   55

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1. A
   $\frac{3}{4}$
2. B
   $\frac{4}{13}$
3. C
   $\frac{2}{3}$
4. D
   $\frac{1}{2}$

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1. A
   1 only
2. B
   2 only
3. C
   Both 1 and 2
4. D
   Neither 1 nor 2

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1. A
   0.9
2. B
   0.7
3. C
   0.5
4. D
   0.3

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1. A
   $\dfrac{1}{4}$
2. B
   $\dfrac{1}{3}$
3. C
   $\dfrac{1}{2}$
4. D
   $\dfrac{1}{6}$

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1. A
   $P(A)+P(B)$
2. B
   $P(A\cup B)$
3. C
   $P(A\cap B)$
4. D
   $P(A)P(B)$

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1. A
   3
2. B
   6
3. C
   8
4. D
   9

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1. A
   10%
2. B
   15%
3. C
   20%
4. D
   25%

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1. A
   324
2. B
   364
3. C
   384
4. D
   400

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