Question

Copy the following Python fuction discussed in class into your file:

from random import *
def makeRandomList(size, bound):
    a = []
    for i in range(size):
        a.append(randint(0, bound))
    return a

a. Rename the function sumList as meanList and modify it so that it finds the average of the list. The average is the sum divided by the size (len) of the list. Make sure that the function doesn't give you an error when it is called on an empty list.

The function should also return the result and not print it. If the list is empty, the function should return 0.

Test the function in the console to see if it works.

b. Rename the function searchList as countVal and modify it so that it returns the number of times the value can be found in the list. If the list is empty or does not contain the value, it should return 0.

Test this second function a few times the same way as the first one.

c. Modify the testing part, including the printed messages, to reflect the new functions.

Test the program to make sure that it works fine.

Answer 1

import random

def makeRandomList(size, bound):

a = []

for i in range(size):

a.append(random.randint(0, bound))

return a

def meanList(data):

if(len(data)==0):

return 0

total=0

for x in data:

total=total+x

return (total/len(data))

def countVal(data,n):

if(len(data)==0):

return 0

count=0

for x in data:

if n==x:

count=count+1

return count

data=makeRandomList(10,100)

print(data)

print("Average : ",meanList(data))

print("10 occurs in the list : ",countVal(data,11))

data=makeRandomList(10,100)

print(data)

print("Average : ",meanList(data))

print("5 occurs in the list : ",countVal(data,5))

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