PROBABILITY class 12 ....urgent
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for independent events
P( A U B )
=P(A) + P (B) - P(A). P (B) 5/3 = 1/2 + K - 1/2 × K
5/3 - 1/2 = K - K / 2
10/6 - 3/6 = 2K/2 - K / 2
7/6 = K /2
K/2 = 7/6
6K = 14
K = 14 / 6
K = 7 /3
P( A U B )
=P(A) + P (B) - P(A). P (B) 5/3 = 1/2 + K - 1/2 × K
5/3 - 1/2 = K - K / 2
10/6 - 3/6 = 2K/2 - K / 2
7/6 = K /2
K/2 = 7/6
6K = 14
K = 14 / 6
K = 7 /3
ankitagni:
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