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14.Probability
easy
$A$ और $B$ दो घटनाएँ इस प्रकार हैं कि $P ( A )=0.54, P ( B )=0.69$ और $P ( A \cap B )=0.35 .$
ज्ञात कीजिए
$P ( A \cup B )$
A
$0.88$
B
$0.88$
C
$0.88$
D
$0.88$
Solution
It is given that $P ( A )=0.54$, $P ( B )=0.69$, $P (A \cap B)=0.35$
We know that $P (A \cup B)= P ( A )+ P ( B )- P (A \cap B)$
$\therefore P (A \cup B)=0.54+0.69-0.35=0.88$
Standard 11
Mathematics