The binomial distribution for which mean $= 6$ and variance $= 2$,is

  • A
    $(\frac{2}{3} + \frac{1}{3})^6$
  • B
    $(\frac{2}{3} + \frac{1}{3})^9$
  • C
    $(\frac{1}{3} + \frac{2}{3})^6$
  • D
    $(\frac{1}{3} + \frac{2}{3})^9$

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