[填空题]
In an art museum, there are 03fm6wa 1sc02 b tjf a)lozwrsop6i-. 8x i1 qs9,s ci/sydsp64 different paintings by Picasso, 5 different paintings by Van Gogh, and 3 different paintings by Rembrandt. The curator of the museum wants to hold an exhibition in a hai1dcx9 6, pi4s/qsssyll that can only display a maximum of 7 paintings at a time.
The curator wants to include at least two paintings from each artist in the exhibition.
1. Given that 7 paintings will be displayed, determine how many ways they can be selected.
2. Find the probability that more Rembrandt paintings will be selected than Picasso paintings or Van Gogh paintings.
