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प्रश्न
If p : It is a day time , q : It is warm
Give the verbal statements for the following symbolic statements :
(a) p ∧ ∼ q (b) p v q (c) p ↔ q
उत्तर
Let p : It is a day time
q : It is warm
(a) It is a day time and it is not warm.
(b) It is a day time or it is warm.
(c) It is warm if and only if it is a day time.
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p = probability of defective device = 10% = `10/100 = square`
∴ q = 1 - p = 1 - 0.1 = `square`
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`P(X=x)=""^n"C"_x p^x q^(n-x)= ""^4"C"_x (0.1)^x (0.9)^(4 - x)`
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