10 days of statistics Hackerrank

1. Mean , Median and Mode  program by using Python:

#mean

N = int(input())

arr = list(map(int,input().strip().split()))

sum = 0

for i in range(0,len(arr)):

    sum = sum + arr[i]

    mean = sum/N

print(mean)

#median

arr.sort()

for i in range(len(arr)):

    i = N//2

    x1 = arr[i]

    x2 = arr[i-1]

    median = (x1+x2)/2

print(median) 

#mode

mode = dict()

for i in range(N):

    if arr[i] in mode:

        mode[arr[i]] += 1

    else:

        mode[arr[i]] = 1

mode = sorted(mode.items(), key=lambda x: (-x[1], x[0]))

print("%.1f" % mode[0][0])

Mean, median and mode programming by using python.

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