Question

The probability of drawing two red cards without replacement is 25102 , and the probability of drawing one red card is 12 .

Answer 1

Answer : 25/51

The probability of drawing two red cards without replacement is 25/102 , and the probability of drawing one red card is 1/2 .

probability(drawing a second red card, given that the first card is red)

= Probability (drawing two red cards without replacement) divide by probability (drawing a one red card)

probability(drawing a second red card, given that the first card is red)

= $\frac{\frac{25}{102}}{\frac{1}{2} }$

= $\frac{25}{102} * \frac{2}{1}$

= $\frac{50}{102}$

= $\frac{25}{51}$