Four digits is formed from a set of integers

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A number which consists of four digits is formed from a set of integers {1, 2, 3, 4, 5, 6, 7, 8, 9}. Events A, B and C are defined as follows: A: The number does not contain digit 6. B: The number consists of four different digits. C: The number begins with digit 3.

a. Find P( ∪ )

b. State, with reason, whether events A and B are independent.

Reference no: EM132581533

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