Useful tips for everyday
What is the probability of getting all the 5 rejected items or all the 5 accurate items from a supplier? → The probability of getting…
Does Heteroskedasticity cause Type 1 error? An example of the consequence of biased standard error estimation which OLS will produce if heteroskedasticity is present, is…
What is node impurity in decision tree? The node impurity is a measure of the homogeneity of the labels at the node. The current implementation…
Is parametric the same as normal distribution? Parametric tests assume a normal distribution of values, or a “bell-shaped curve.” For example, height is roughly a…
What are the factors determine the number of replications? Calculation of the number of replicates depends on: 1. An estimate of σ2 obtained from previous…
Why do you need a contingency table in R? A contingency table shows the distribution of a variable in the rows and another in its…
Is geometric mean the same as standard deviation? In probability theory and statistics, the geometric standard deviation (GSD) describes how spread out are a set…
How many states can be included in a Hmm? The Hidden Markov Model can be summarised by a system comprising of two set of states,…
What do added variable plots tell you? Added variable plot provides information about the marginal importance of a predictor variable, given the other predictor variables…
What causes a large p-value? High p-values indicate that your evidence is not strong enough to suggest an effect exists in the population. An effect…