Answer: 0.24
Explanation:
The probability of randomly selecting a blue card = 20% = 0.2
The probability of randomly selecting a red card = 30% = 0.3
The probability of not randomly selecting a blue card = 1 - 0.2 = 0.8
The probability of not randomly selecting a red card = 1 - 0.3 = 0.7
Therefore, the probability that Stella will randomly select a card that is not blue, replace it, then randomly select a card that is red will be:
= P(not blue ) × P(red)
= 0.8 × 0.3
= 0.24
The answer is 0.24