by saspower | Jun 13, 2024 | Data Science Online Course
Correlation evaluates the degree and direction of a linear relationship between two variables, with values ranging from -1 (perfect negative) to +1 (perfect positive). It is assessed using a correlation coefficient. Regression, especially linear regression, is the...
by saspower | Jun 12, 2024 | SAS Online Course in India
A high R-squared score in linear regression shows that the model and data are well-fitted. An R-squared value greater than 0.7 is regarded good, indicating that the model explains 70% or more of the variability in the response variable. A low R-squared value, usually...
by saspower | Jun 6, 2024 | Data Science Online Course
Income Distribution: Income data is frequently right skewed, with a small number of people earning extremely high earnings and the bulk receiving moderate to low incomes.House Prices: Real estate prices are right-skewed, with the majority of residences being fairly...
by saspower | May 28, 2024 | Data Science Online Course
Data sets with a high mean and a low standard deviation show that the majority of values are tightly grouped around a high central value. Here are few examples:Test Scores in a Well-Prepared Class: If the majority of students score well, scoring between 90 and 95...
by saspower | May 9, 2024 | Data Science Online Course
Cleaning time series data requires multiple stages. First, identify and manage missing values by either imputing or deleting them. Then, look for and address outliers that might bias the analysis. Next, guarantee homogeneity in time intervals by interpolating or...
