65 baseball cards are in a box. 19 of them are rookie cards. A card is randomly drawn from the box. Without replacing the first one, a second card is drawn. What is the probability that both of the cards drawn are rookie cards? Round your answer to the nearest hundredth.
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Extra Insights
To find the probability that both cards drawn are rookie cards, we start with the number of rookie cards, which is 19. For the first card, the probability of drawing a rookie card is 19 out of 65, or \( \frac{19}{65} \). Once the first rookie card is drawn, there are now 18 rookie cards left in the box, and the total number of cards is reduced to 64. So, the probability of drawing a second rookie card is now \( \frac{18}{64} \). To find the combined probability, we multiply the probabilities of each event: \[ P(\text{both rookie}) = P(\text{first rookie}) \times P(\text{second rookie}) = \frac{19}{65} \times \frac{18}{64} \] Calculating this gives: \[ P(\text{both rookie}) = \frac{19 \times 18}{65 \times 64} = \frac{342}{4160} \approx 0.0823 \] Rounded to the nearest hundredth, the probability is 0.08.