Rainy Weekend Bounds

The probability of rain on Saturday is 40% and the probability of rain on Sunday is 50%.

Give three numbers, in this order, each as a decimal:

1. The probability that it does not rain at all during the weekend if the two days are independent.
2. The smallest possible probability of no rain all weekend, over all possible dependence structures between the two days.
3. The largest possible probability of no rain all weekend, over all possible dependence structures.

Enter them as a comma-separated list.