Question 474338
a)The chances that NONE has a new desk are (.7)4=.2401
The chances that at least one has a new desk =1-.2401=.7599
b)4/30x3/29=.01379..
c)55C5 X 42=(55x54x53x52x51x50!/5x4x3x2x50!)x42=11x13x17x27x53x42=146107962..