Useful tips for everyday
What is distribution problem? Distribution problems involve the allocation of goods or resources to storage areas in anticipa- tion of forecasted market demands. A classic…
How to write a regression with a categorical variable? Thus we could write our regression as: weighti =β1δF emale i +β2δM ale i +α w…
How do you determine the accuracy of a classifier? You simply measure the number of correct decisions your classifier makes, divide by the total number…
What does the Box Cox transformation do? The Box-Cox transformation transforms our data so that it closely resembles a normal distribution. In many statistical techniques,…
What is the intuition of variance? Variance is a description of how far members are from the mean, AND it judges each observation’s importance by…
At what number do you reject the null hypothesis? If there is less than a 5% chance of a result as extreme as the sample…
Why use functional data analysis? Functional data analysis (FDA) is increasingly being used to better analyze, model and predict time series data. Key aspects of…
What does the correlation coefficients tell you about the relationships between the three variables? The correlation coefficient describes how one variable moves in relation to…
When does a correlation exist between two variables? A correlation exists between two variables when one of them is related to the other in some…
Which is the easiest method to find the lower bound? It is the easiest method to find the lower bound. The Lower bounds which can…