Useful tips for everyday
Which of the following is an example of an ecological correlation? An example of an ecological correlation between two variables is the number of years…
What if the p-value is zero? A p-value simply tells you the strength of evidence in support of a null hypothesis. If the p-value is…
Why do we use MCC? MCCs are used by credit card issuers to identify the type of business in which a merchant is engaged. MCCs…
What is the total sum of squares quizlet? The total sum of squares (SST) measures the amount of variation between each data value and the…
Which is better the fit of a regression or the mean? The fit of a proposed regression model should therefore be better than the fit…
Why is it important to find the center of data? You can summarize data in different ways by finding the center of data. The center…
What is the difference between a 2 sample independent t-test and an ANOVA? The t-test is a method that determines whether two populations are statistically…
What are clusters on a graph? Graph clustering refers to clustering of data in the form of graphs. Two distinct forms of clustering can be…
What do shrinkage methods do? In statistics, shrinkage is the reduction in the effects of sampling variation. In regression analysis, a fitted relationship appears to…
How to determine the PDF of X and Y? The joint probability density function of random variables X and Y is given by pXY(x, y)…