Q. 225.0( 1 Vote )

Mark the correct A.

B.

C.

D.

Answer :

Given:


n=4


p(getting atleast one head)=?


• 0 head : HHHH


• 1 head : HTTT


THTT


TTHT


TTTH


• 2 heads :HHTT


HTHT


HTTH


THHT


THTH


TTHH


• 3 heads: HHHT


HHTH


HTHH


THHH


• 4 heads : HHHH


Total ouctomes = 16


Outcomes containing atleast 1 head = 15


P(getting atleast 1 head)=

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