Binomial with given mean and variance (or their sum and product): find n, p and a probability

1. A.
   $\frac{33}{2^{32}}$
2. B.
   $\frac{33}{2^{29}}$
3. C.
   $\frac{33}{2^{28}}$
4. D.
   $\frac{33}{2^{27}}$

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1. A.
   $\frac{5}{9}$
2. B.
   $\frac{64}{81}$
3. C.
   $\frac{16}{27}$
4. D.
   $\frac{145}{243}$

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1. A.
   $\frac{73}{27}$
2. B.
   $\frac{146}{27}$
3. C.
   $\frac{146}{81}$
4. D.
   $\frac{126}{81}$

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1. A.
   528
2. B.
   529
3. C.
   629
4. D.
   630

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1. A.
   52
2. B.
   50
3. C.
   51
4. D.
   53

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1. A.
   12
2. B.
   15
3. C.
   11
4. D.
   16

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