Hello, recently got this from another chegg question. Im getting indent errors and know nothing about python, was wondering if you can give the following code back with appropriate indentations. Im running it on spyder for python. Thanks

Ans. Hope the following python code helps to solve the problem.

#threeUniqueSongs.py

#Simulation of professor listening to 3 songs out of playlist of 4 songs 10000 times sampling with replacement possible import random import math

#Here playlist is the list of 4 songs i.e. "Eastside", "Better Now", "Lucid Dreams", "Harder, Better, Faster, Stronger" def chooseSong(playlist): #randomly choose a song out of the playlist with repition possible using random.randint function songIndex = random.randint(0, len(playlist)-1) #len(playlist) = Size of playlist list here 4, #here we consider from 0 to len(playlist)-1 as list indexing starts from 0 #so last song has index len(playlist)-1 return playlist[songIndex] #select a song out of the 4 songs at random def chooseThreeSongs(iteration, playlist): songsChosen = [] #to store the songs chosen in the current iteration firstSong = chooseSong(playlist) songsChosen.append(firstSong) secondSong = chooseSong(playlist) songsChosen.append(secondSong) thirdSong = chooseSong(playlist) songsChosen.append(thirdSong) #to print the three songs chosen in comma separated manner print("For iteration "+str(iteration)+" songs choosen are: "+str(firstSong), str(secondSong), str(thirdSong), sep=',') return songsChosen def findUniqueSongs(songsChosen): #to find number of unique songs out of the 3 songs chosen uniqueSongs = set() #set to store all unique songs say the song "Better Now" is repeated #twice then uniqueSongs stores it only once by set property

for song in songsChosen: uniqueSongs.add(song) return len(uniqueSongs) #number of unique songs listened #main function handling the simulation upto 10000 times def main(): simulations = 10000 simulationWithThreeUniqueSongs = 0 #to count number of simulations with 3 unique songs probThreeUniqueSongs = 0 totalUniqueSongsListened = 0 averageUniqueSongsListened = 0 #playlist of 4 songs as specified in the question playlist = ["Eastside", "Better Now", "Lucid Dreams", "Harder, Better, Faster, Stronger"] for simulation in range(1, simulations+1): #to choose three songs out of the given playlist above for listening songsChosen = chooseThreeSongs(simulation, playlist) uniqueSongs = findUniqueSongs(songsChosen) totalUniqueSongsListened += uniqueSongs if(uniqueSongs == 3): #all 3 songs are unique simulationWithThreeUniqueSongs += 1 probThreeUniqueSongs = simulationWithThreeUniqueSongs/simulations #basic probability formula print("After "+str(simulations)+" simulations, the probability that after 3 songs are played that your professor listens to three unique songs is %s ." %probThreeUniqueSongs) averageUniqueSongsListened = math.ceil(totalUniqueSongsListened/(3*simulations)) #as in each #simulation 3 songs are listened print("After "+str(simulations)+" simulations, the average number of unique songs that your professor listens to is %s ." %averageUniqueSongsListened) #Invoking main() function if __name__ == "__main__": main()