Question

should be done in python please help

9) A file named floats.txt contains a bunch of numbers. Create a file named stats.txt that contains: the minimum number, the maximum number, the sum of the numbers, the average number, and the standard deviation of the numbers, each on a separate line.

Answer 1

#The Question can be answered in two ways.

#1)Using general calculation

#2)Using numpy module

#First Approach

from math import sqrt
#opening floats.txt in read mode
fp=open("floats.txt","r")
floats=[]
for line in fp.readlines():
   #Converting each line in txt file to float
   floats.append(float(line))
#Closing fp
fp.close()
minimum=min(floats)
maximum=max(floats)
total=sum(floats)
average=total/len(floats)
"""
The forumla for standard deviation is

sqrt(sum((x_i - average(x))**2)/n)
"""
difference=0
for x in floats:
   difference+=abs(x-average)**2
std=sqrt(difference/len(floats))
#Opening stats.txt in write mode
fp=open("stats.txt","w")
fp.write(str(minimum)+"\n")
fp.write(str(maximum)+"\n")
fp.write(str(total)+"\n")
fp.write(str(average)+"\n")
fp.write(str(std)+"\n")
#Closing "stats.txt"
fp.close()

CUsersK.S.K\Desktop\Coding\Chegg\Python\statistics. py - Sublime Text (UNREGI.. CAUsersK.S.KDesktopl Coding\Chegg\ Python\st.. SCAUSERSK.S.KDesktop File File Edit Selection Find View Goto Iools Project Preferences Help Edit Selection Find View Goto Tools File Edit Selection Find View Goto Tools Project Preferences Project Preferences Help Help simple_line one.c x ATM.py X statistics.pyX bank.pyX floats.bt stats.bxt from math import sqrt #opening floats . txt in read mode 1 2.4 2.4 floats.txt","p") A 98 23.528800009000002 A for line in fp.readlines ( ): #Converting each line in txt file to float floats.append (float (line) ) #Closing fp fp.close) 4 6.34 3.9213333333333336 A 6 1.348559189983476 3.4590 7 2.789 16 n(floats) maximum-max(floats) total-sum(floats) average total /len (floats) 11 12 13 14 The forumla for standard deviation is 13 sqrt(sum( (x_i - average(x))**2) /n) 17 18 CWindowslsystem32\cmd.exe difference 0 for x in floats : difference-abs (x-average)**2 std-sqrt(difference/len (floats ) ) 19 C:UsersK.S.K\Desktop\Coding\Chegg\Python>python statistics.py 28 21 : \Users\K . S . K\Desktop\Coding\Chegg\Python > 23 fp-open ("stats.txt", "w") fp.write (str (minimum) +" \n") fp.write (str ( maximum ) +"\n") 27 24 25 26 fp.write(str (total)+"\n") fp.write(str( average) +" \n") 28 "\n") #Closing "stats.tv fo.close) 30 31

#Second Approach

import numpy as np
from math import sqrt
#opening floats.txt in read mode
fp=open("floats.txt","r")
floats=[]
for line in fp.readlines():
   #Converting each line in txt file to float
   floats.append(float(line))
#Closing fp
fp.close()

floats=np.array(floats)

minimum=floats.min()
print(minimum)
maximum=floats.max()
print(maximum)
total=floats.sum()
print(total)
average=floats.mean()
print(average)
std=floats.std()
print(std)

#Opening stats.txt in write mode
fp=open("stats.txt","w")
fp.write(str(minimum)+"\n")
fp.write(str(maximum)+"\n")
fp.write(str(total)+"\n")
fp.write(str(average)+"\n")
fp.write(str(std)+"\n")
#Closing "stats.txt"
fp.close()

jupyter Untitled Last Checkpoint: 03/20/2019 (autosaved) Logout Python 3 Help Trusted File Edit View Insert Cell Kemel Widgets Run Code In [1] import numpy as np from math import sqrt #opening floats. txt in read mode fp-open("floats . txt","r") floats- for line in fp.readlines () in txt file to float floattn ea. . append (float (line) ) #CLosing fp fp.close) In [13]: floats=np.array (floats ) minimum=floats.min ( ) print (minimum) maximum-floats.max () print (maximum) [14] In .sum print (total) average-floats . mean ( ) print(average) std-floats.std ( ) print(std) 2.4 6.34 23.528000000000002 3.9213333333333336 ..348559189983476 [15]#Opening stats.txt in write mode fp-open ("stats . txt", "w") fp.write(str (minimum) +" \n" ) fp.write(str (maximum) +" \n" ) fp.write(str(total) +" \n" ) fp.write(str(average) +" \n") fp.write(str(std)+"\n") In