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14.Probability
easy
આપેલ બે નિરપેક્ષ ઘટનાઓ $A$ અને $B$ માટે $P(A) = 0.3$ અને $P(B) = 0.6$ હોય, તો $ P (A$ અથવા $B)$ શોધો.
A
$0.72$
B
$0.72$
C
$0.72$
D
$0.72$
Solution
It is given that $P(A)=0.3, P(B)=0.6$
Also, $A$ and $B$ are independent events.
$P(A$ or $B)=P(A \cup B)$
$=\mathrm{P}(\mathrm{A})+\mathrm{P}(\mathrm{B})-\mathrm{P}(\mathrm{A} \cap \mathrm{B})$
$=0.3+0.6-0.18$
$=0.72$
Standard 11
Mathematics
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