python function

Question

3 separate user defined functions to find the mean, median and mode of an array

Answer 1

def mean(L):

total = 0

for x in L:

total += x #total = total +x

mean = total / len(L)

return mean

def median(L):

L.sort()

if len(L)%2 != 0:

median = L[int(len(L)/2)]

else:

median = L[(int(len(L)/2)) - 1] + L[int(len(L)/2)]

median = median/2

return median

def mode(L):

counter = 0

num = L[0]

for i in L:

curr_frequency = L.count(i)

if(curr_frequency > counter):

counter = curr_frequency

num = i

if len(set(L)) == len(L):

return 'there is no mode'

return num

number_list = []

while(True):

ask = input('enter a number and say "stop" to end: ')

if ask == 'stop':

break

number_list.append(int(ask))

mean = str(mean(number_list))

median = str(median(number_list))

mode = str(mode(number_list))

print('mean: '+ mean + '\n' + 'median: ' + median + '\n' + 'mode: ' + mode)

Answer 2

The user defined mean (similar idea for the median and mode):

def my_mean(x):

   y=sum(x)/len(x)

   return y  

test:

x=[1,3,4,5,7,9,10]

my_mean(x)

5.5714