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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$ નહિ અને $B$ નહિ) શોધો.
A
$0.28$
B
$0.28$
C
$0.28$
D
$0.28$
Solution
$P($ neither $A$ nor $B)$ $=P\left(A^{\prime} \cap B^{\prime}\right)$
$=\mathrm{P}\left((\mathrm{A} \cup \mathrm{B})^{\prime}\right)$
$=1-\mathrm{P}(\mathrm{A} \cup \mathrm{B})$
$=1-0.72$
$=0.28$
Standard 11
Mathematics
