#Finds the mean, median, and mode of a given list of numbers.
#Mean - average
#Median - middle number
#Mode - number with most appearances
#Range - the maximum - the minimum
from math import *
#   /\
#Useful for doing math

from random import *
import csv


with open("baseball.csv")as f:
    myreader = csv.reader(f)
    nums = []
    for line in myreader:
        for x in line:
            nums.append(int(x))


def mean(nums):
    return sum(nums)/len(nums)

def findRange(nums):
    return max(nums)-min(nums)

def median(nums):
    n = sorted(nums)
    if len(n) % 2 == 0:
        return n[int((len(n)/2))]
    else:
        return mean([n[len(n)//2],n[len(n)//2+1]])

def mode(nums):
    n = sorted(nums)
    out = []
    record = 0
    rVal = 0
    for num in n:
        if n.count(num) > rVal:
            record = num
            rVal = n.count(num)
    return record

def standardDeviation(nums):
    m = mean(nums)
    sqrd = []
    for num in nums:
        sqrd.append((num-m)**2)
    m2 = sum(sqrd)/(len(nums)-1)
    return sqrt(m2)

'''
print("Mean:",mean(nums))
print("Median:",median(nums))
print("Mode:",mode(nums))
print("Range:",findRange(nums))
print("Standard Deviation:",standardDeviation(nums))
'''

cMean = 10
cList = [cMean+randint(-4,4) for i in range(100)]

print(standardDeviation(cList))