Gujarati
14.Probability
easy

यदि $A$ तथा $B$ दो स्वतंत्र घटनाएँ हो, जहाँ $P\,(A) = 0.40,\,\,P\,(B) = 0.50.$ तो $P$ (न $A$ और न $B$) ज्ञात कीजिए

A

$0.9$

B

$0.1$

C

$0.2$

D

$0.3$

Solution

(d) $P$( न तो $A$ व न $B$)$ = P(\bar A \cap \bar B)$

$ = P(\bar A)\,.\,P(\bar B) = 0.6 \times 0.5 = 0.30$.

Standard 11
Mathematics

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