Hello **Programmers/Coders,** Today we are going to share ** solutions of Programming problems of HackerRank of Programming Language Python**. At Each Problem with Successful submission with

**all Test Cases Passed,**you will get an score or marks. And after solving maximum problems, you will be getting stars. This will highlight your profile to the recruiters.

In this post, you will find the solution for **Mean, Var, and Std in Python-HackerRank Problem**. We are providing the **correct and tested solutions** of coding problems present on **HackerRank**. If you are not able to solve any problem, then you can take help from our Blog/website.

Use โCtrl+Fโ To Find Any Questions Answer. & For Mobile User, You Just Need To Click On Three dots In Your Browser & You Will Get A โFindโ Option There. Use These Option to Get Any Random Questions Answer.

**Introduction To Python**

**Python **is a widely-used, interpreted, **object-oriented, and high-level programming** language with dynamic semantics, used for general-purpose programming. It was created by **Guido van Rossum**, and first released on **February 20, 1991**.

**Python **is a computer programming language often used to build websites and software, automate tasks, and conduct data analysis. It is also used to create various machine learning algorithm, and helps in Artificial Intelligence. Python is a general purpose language, meaning it can be used to create a variety of different programs and isnโt specialized for any specific problems. This versatility, along with its beginner-friendliness, has made it one of the most-used programming languages today. A survey conducted by industry analyst firm **RedMonk **found that it was the most popular programming language among developers in **2020**.

** Link for the Problem** – Mean, Var, and Std in Python โ HackerRank Solution

Mean, Var, and Std in Python โ HackerRank Solution

**Problem:**

**mean**The mean tool computes the arithmetic mean along the specified axis.

importnumpymy_array = numpy.array([ [1,2], [3,4] ]) print numpy.mean(my_array, axis =0) #Output : [ 2. 3.] print numpy.mean(my_array, axis =1) #Output : [ 1.5 3.5] print numpy.mean(my_array, axis =None) #Output : 2.5 print numpy.mean(my_array) #Output : 2.5

By default, the axis is None. Therefore, it computes the mean of the flattened array.**var**The var tool computes the arithmetic variance along the specified axis.

importnumpymy_array = numpy.array([ [1,2], [3,4] ]) print numpy.var(my_array, axis =0) #Output : [ 1. 1.] print numpy.var(my_array, axis =1) #Output : [ 0.25 0.25] print numpy.var(my_array, axis =None) #Output : 1.25 print numpy.var(my_array) #Output : 1.25

By default, the axis is None. Therefore, it computes the variance of the flattened array. **std**The std tool computes the arithmetic standard deviation along the specified axis.

importnumpymy_array = numpy.array([ [1,2], [3,4] ]) print numpy.std(my_array, axis =0) #Output : [ 1. 1.] print numpy.std(my_array, axis =1) #Output : [ 0.5 0.5] print numpy.std(my_array, axis =None) #Output : 1.11803398875 print numpy.std(my_array) #Output : 1.11803398875

ย By default, the axis is None. Therefore, it computes the standard deviation of the flattened array.ย

#### Output Format :

First, print the mean.

Second, print the var.

Third, print the std.

#### Sample Input :

221234

#### Sample Output :

[1.53.5] [1.1.]1.11803398875

#### Task :

You are given a 2-D array of size NXM.

Your task is to find:The mean along axis 1The var along axis 0The std along axis

#### Input Format :

The first line contains the space separated values of N and M.

The next N lines contains M space separated integers.

Mean, Var, and Std in Python โ HackerRank Solution

import numpy N,M = map(int, input().split()) l = [] for i in range(N): a = list(map(int, input().split())) l.append(a) l = numpy.array(l) numpy.set_printoptions(legacy='1.13') print(numpy.mean(l, axis = 1)) print(numpy.var(l, axis = 0)) print(numpy.std(l))

buy cialis 10mg online buy generic tadalafil best ed medications

order cefadroxil for sale buy lamivudine medication buy generic finasteride 1mg

buy estradiol pills estrace brand prazosin 1mg generic

fluconazole online order purchase fluconazole generic order ciprofloxacin for sale

mebendazole online buy tadalis usa tadalis price

buy metronidazole 400mg pill cephalexin 500mg cheap buy cephalexin 250mg generic

order avana 100mg online tadalafil usa cambia for sale online

buy clindamycin online cheap order erythromycin 500mg generic order fildena 100mg online cheap

buy indomethacin cheap cheap indocin 75mg suprax 200mg us

order nolvadex 20mg sale budesonide us cefuroxime us

buy trimox pill purchase arimidex online cheap biaxin 500mg tablet

order clonidine 0.1 mg clonidine order online how to get spiriva without a prescription

bimatoprost sale where to buy careprost without a prescription generic desyrel

buy sildenafil 100mg for sale order generic sildenafil sildalis cost

minocin 50mg for sale cost hytrin cost pioglitazone 30mg

buy isotretinoin 40mg online amoxicillin 1000mg brand zithromax 250mg without prescription

order arava 10mg sale sildenafil overnight where can i buy azulfidine

order generic azipro gabapentin online order gabapentin 800mg online

buy tadalafil tablets tadalafil 10mg cost buy cialis 5mg without prescription

purchase lasix pill lasix 100mg cheap order ventolin inhalator

generic ivermectin cream deltasone 20mg ca prednisone 20mg brand

vardenafil us purchase plaquenil without prescription order hydroxychloroquine 400mg generic

ramipril 5mg without prescription glimepiride 4mg us cheap etoricoxib

purchase levitra generic order hydroxychloroquine without prescription plaquenil medication

mesalamine 400mg canada buy azelastine medication buy avapro 300mg generic

order olmesartan 20mg pills buy depakote 500mg generic depakote tablet

cost carvedilol cheap cenforce buy chloroquine 250mg pill

buy acetazolamide 250mg for sale order isosorbide 40mg generic generic azathioprine 50mg

digoxin 250 mg sale buy telmisartan 80mg order molnupiravir 200mg generic

order naproxen 250mg pill prevacid 15mg usa lansoprazole uk

cost olumiant 4mg atorvastatin buy online buy generic atorvastatin online