Write down the probability mass function of a Bernoulli distribution.

1.	Write down the probability mass function of a Bernoulli distribution.
Answer» The Bernoulli distribution is: P(x) = PX( 1 – P)^{1 – X} . where P> O, and X = 0,1; OR p(x) = Pxq^{1 – X}; x = o,1 (Range); . P-parameter, Mean = p, Variance = P(1 – p) 0r pq; mean> variance Ex:- (i) A coin is tossed & getting H or T (ii) A new born baby is a male or female ¡s a Bernoulli variate with the parameter P = 0.5.

Answer»

The Bernoulli distribution is:

P(x) = PX( 1 – P)^{1 – X} . where P> O, and X = 0,1;

OR p(x) = Pxq^{1 – X}; x = o,1 (Range); .

P-parameter, Mean = p, Variance = P(1 – p) 0r pq; mean> variance

Ex:- (i) A coin is tossed & getting H or T

(ii) A new born baby is a male or female ¡s a Bernoulli variate with the parameter P = 0.5.

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