SHOULD WIZARD HIT MOMMY|Revision

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Should Wizard Hit Mommy Detailed Explanation Part I

Should Wizard Hit Mommy Detailed Explanation Part Ii

A and B try to hit a target. The probability that A hits the target is 7/10 and the probability that B hits the target is 4/10. If these two events are independent, the probability that B hits the target, given that the target is hit,is :