6 coins are tossed 320 times. The probability of getting 5 heads 2 times is

6 coins are tossed 320 times. The probability of getting 5 heads 2 times is
  1. $30^2 \times \frac{e^{-30}}{2}$
  2. $30 \times e^{-30}$
  3. $30^2 \times e^{-30}$
  4. $30 \times e^{-10}$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2017 (24 Apr Shift 1)

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