1. list1 = ["gold", "gems ", "diamonds "] list2 = [“rubies", “emeralds ", “opals"] list3 = list1 + list2 print(list3) list1 +=list2 print(list1)

2. listofstuff = [“ant", “bear", “cat", “dog“,”elephant”] # assign by index listofstuff[0] = “aardvark" print(listofstuff) # assign by slice listofstuff[3:5] = [“dolphin"] print(listofstuff) # delete an element del listofstuff[2] print(listofstuff) # delete a slice del listofstuff[:2] print(listofstuff)

3. scores = [] #add a score newscore = 3 #append - adds to list scores.append(newscore) newscore = 8 scores.append(newscore) newscore = 4 scores.append(newscore) newscore = 2 scores.append(newscore) newscore = 5 scores.append(newscore) newscore = 8 scores.append(newscore) print(scores) #remove a score score = 8 if score in scores: scores.remove(score) print (scores) scores.reverse() print(scores) # sort scores scores.sort() print(scores) scores.sort(reverse = True) print(scores)

4.  count(value) – counts the number of times value occurs in list  index(value) – returns index of first occurrence of value  insert(f,value)- inserts value at position f  pop([f]) – returns value at position f and removes value from list. Without f, it pops the last element off the list  remove(value) – removes first occurrence of value from the list scores.append(3) scores.append(8) scores.append(3) print(scores) print(scores.count(3)) print(scores.index(3)) scores.insert(7, 4) print(scores) scores.pop() print(scores) scores.remove(5) print (scores)

5. import random def sl(list,new): if len(list) == 1: new.append(list.pop( )) return(new) else: x = random.randrange(0,len(list)) new.append(list.pop(x)) return(sl(list,new)) list = ["m","o","t","h","e","r"] new = [] print(sl(list,new))