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Question

Mathematics Question on Conditional Probability

Four cards are drawn at random from a well shuffled pack of 52 playing cards. The probability that all the 4 are hearts, but one is a queen is

A

4c1×12c352c4\frac{^{4}c_{1} \times^{12}c_{3}}{^{52}c_{4}}

B

12c352c4\frac{^{12}c_3}{^{52}c_4}

C

12c452c4\frac{^{12}c_4}{^{52}c_4}

D

13452c4\frac{13^4}{^{52}c_4}

Answer

12c352c4\frac{^{12}c_3}{^{52}c_4}

Explanation

Solution

P(E)=12c352c4P(E) = \frac{^{12}c_3}{^{52}c_4}