Chemistry, 25.04.2020 19:19, queenofspades

There are letter tiles in a bag. Four A's, five b's, six c's and 5 d's. You select one tile, replace it and then draw another. P(C AND D).. A. 3/40. B. 11/20. C. 11/40. D. 6/20

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There are letter tiles in a bag. Four A's, five b's, six c's and 5 d's. You select one tile, replace...