Binomial with mean 2 and variance 1: probability X is above or below 1

1. A.
   $\frac{1}{16}$
2. B.
   $\frac{9}{16}$
3. C.
   $\frac{3}{4}$
4. D.
   $\frac{15}{16}$

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1. A.
   $\frac{5}{16}$
2. B.
   $\frac{11}{16}$
3. C.
   $\frac{12}{16}$
4. D.
   $\frac{15}{16}$

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1. A.
   $0.0625$
2. B.
   $0.2500$
3. C.
   $0.3125$
4. D.
   $0.6875$

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