Skip to main content

 5 STATISTICS CONCEPTS 

EVERY DATA SCIENTIST MUST KNOW 


1. MEASURES OF CENTRAL TENDENCY 

MEAN - MEDIAN -MODE 


2. MEASURES OF SPREAD 

RANGE - STANDARD DEVIATION - 

VARIANCE -IQR(INTERQUARTILE RANGE) 


3. MEASURES OF SHAPE 

SYMMETRIC (BELL CURVE) 

SKEWNESS(POSITIVE/NEGATIVE)

KURTOSIS (LEPOKURTIC/MESOKURTIC/ PLATYKURTIC) 


4. HYPOTHESIS TESTING

NULL HYPOTHESIS 

CONFIDENCE INTERVALS 


5. COVARIANCE AND CORRELATION 

PEARSON CORRELATION 

SPEARMAN RANK CORRELATION




 


Comments

Post a Comment

Popular posts from this blog

UPSC ISS 2020 Toppers Marksheet

Union Public Service Commission  Indian Statistical Service 2020 List of Candidates whose mark sheet is attached in this Blog. 1. NIPUN JAIN  2 JAGRTI GARG  3 LAXMI NARAYAN VERMA  4 CHHAJED HARSHADA NANDALAL   5 PREETAM SEN  6 NAUSHEEN MUSHARRAF  7 SUJIT PADHAN  8 ANCHAL JAIN  9 KIRTI ARORA  10 SUTAPA GHOSH 11 HARSHVARDHAN SINGH GARHWAL 12 KALPNA 13 BHAVNA MISHRA 14 DIVYANSHU MISHRA 15 SHIKHA RAI 16 NAVDEEP KAUR  27 ABHISHEK GAURAV  You can send your mark sheet on our Email: statistics.for.help@gmail.com UPSC ISS 2020 AIR 01 "NIPUN JAIN" UPSC ISS 2020 AIR 02  "JAGRTI GARG"  UPSC ISS 2020 AIR 03  "LAXMI NARAYAN VERMA" UPSC ISS 2020 AIR 04  "CHHAJED HARSHADA NANDALAL"  UPSC ISS 2020 AIR 05  "PREETAM SEN" UPSC ISS 2020 AIR 06  "NAUSHEEN MUSHARRAF" UPSC ISS 2020 AIR 07  "SUJIT PADHAN" UPSC ISS 2020 AIR 08  "ANCHAL JAIN" UPSC ISS 2020 AIR 09  "KIRTI ARORA" UPSC IS...
Post a Comment
Read more

UPSC Previous year paper for AD Census Operations (Technical) & Statistical Officer (Planning/Statistics)

UPSC Previous year paper for AD Census Operations (Technical) & Statistical Officer (Planning/Statistics) Syllabus of the Test:  (1) Statistical Methods (2) Sampling Techniques/Survey Methodology (3) Demography and Vital Statistics (4) Fundamentals of Applied Multivariate Analysis (5) Official Statistics (6) Basic knowledge in Computer Applications UPSC 2017 Paper   For PDF file, click on the below link: https://drive.google.com/file/d/14oDfPYGI9bA2g0m-0OmfexHS8LOgaf3j/view?usp=sharing (There are 25 slides) For PDF file, click on the below link: https://drive.google.com/file/d/14oDfPYGI9bA2g0m-0OmfexHS8LOgaf3j/view?usp=sharing Any comments or suggestions are welcome. Subscribe our Youtube Channel----->  Thanks for reading this blog.   
Post a Comment
Read more
3. TOP 10 Statistics, Python, and SQL c oncepts for Job Interview By "Statistics For You"   TOP 10 Statistics Concepts for Job Interview 1. Sampling and Sample Size Estimation 2. Experiments (A/B tests) 3. Descriptive Statistics (Mean/Median/SD) 4. p-value and Significance Level 5. Probability Distributions 6. Z-test and t-test 7. Conditional Probability and Bayes’ Theorem 8. Correlation 9. Linear Regression 10. Logistic Regression TOP 10 Python Concepts for Job Interview 1. Reading data from file/table 2. Writing data to file/table 3. Data Types 4. Function 5. Data Processing (Numpy/Pandas) 6. Data Visualisation (Matplotlib/seaborn) 7. Machine Learning (klearn) 8. Deep Learning (Tensorflow/Keras/PyTorch) 9. Distributed Processing (PySpark) 10. Functional and Object-Oriented Programming TOP 10 SQL Concepts for Job Interview 1. Aggregate Functions (sum/avg/max/min) 2. Group By and Order By 3. JOINs (Inner/Left/Right/Self) 4. Union and Union All 5. Date and Time processing 6. S...
1 comment
Read more