The probability would be 1/2 that he would draw a red color card.
Step-by-step explanation:
Marco draws a card from a standard deck of 52 cards and replace it 10 times. each time Marco draws 'with replacement' so it does not matter what cards were drawn previously so each draw result was independent.
In a standard deck of 52 cards there are 26 red cards.
p (drawing a red card on his 11th draw) = 26/52 = 1/2
therefore on his 11th draw 1/2 probability that he would draw a red color card
