Determine the counting technique used in each scenario There…
Determine the counting technique used in each scenario There are 3 distinct pens: P1,P2,P3 I can put them in a row in 3! = 1*2*3 = 6 ways. I used a counting technique called There 3 cities, c1,c2,c3. Between c1 and c2 there are 2 bridges and between c2, c3 there are 4 bridges. I can travel from c1 to c3 in 2*4 = 8 different ways. From a set of 10 different people, we can choose 2 people in 10!2!⋅8! ways