Useful tips for everyday
Which is the best example of a permutation? Arranging people, digits, numbers, alphabets, letters, and colours are examples of permutations. Selection of menu, food, clothes,…
What distribution does a fair die follow? Because the die is fair, each of the six faces has an equally likely probability of occurring, i.e.,…
What is the dependent variable in a log-linear model? Only the dependent/response variable is log-transformed. This gives the percent increase (or decrease) in the response…
Which of the following is the null hypothesis for a two-sample t-test? The default null hypothesis for a 2-sample t-test is that the two groups…
Which linkage method is used in clustering? Hierarchical Clustering using Average Linkage AKA group-average hierarchical clustering, the Average linkage method uses the average pair-wise proximity…
How do you calculate annual mortality rate? Mortality rate is typically expressed in units of deaths per 1,000 individuals per year; thus, a mortality rate…
How does the value of N affect the accuracy of a N-gram model? In case of a long text, a large N can depict in…
What is local linear regression? Locally Linear Regression: There is another local method, locally linear regression, that is thought to be superior to kernel regression.…
What is a confidence interval in sampling? A confidence interval displays the probability that a parameter will fall between a pair of values around the…
How is the explanatory variable used in research? In some research studies one variable is used to predict or explain differences in another variable. In…