Question

A particular sale involves 5 items randomly selected from a lot of 15 that is known...

A particular sale involves 5 items randomly selected from a lot of 15 that is known to contain 5

defectives. Let Y denote the number of defectives among the 5 sold. What is P(Y > E[Y ]) ?

The answer on key book said it is P(Y > E[Y ]) = 0.5664

Please give me step by step to get this answer thx

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