Final answer:
The probability of choosing two red cards without replacement is 25/102.
Step-by-step explanation:
The probability of choosing two red cards without replacing them is:
P(First card is red) × P(Second card is red | First card is red)
P(First card is red) = Number of red cards / Total number of cards = 26/52 = 1/2
P(Second card is red | First card is red) = Number of red cards after drawing the first red card / Total number of cards after drawing the first red card = 25/51
Therefore, the probability of choosing two red cards without replacement is (1/2) × (25/51) = 25/102.