Useful tips for everyday
What are selection probabilities? DEFINITION: Probability of selection defines the probability that a population unit is included in a sample generated by probability sampling. What…
What are the advantages of gradient boosted decision trees? Gradient boosted decision tree algorithm with learning rate (α) The lower the learning rate, the slower…
Is there any training and testing data in unsupervised learning? In unsupervised learning, there is no training data set and outcomes are unknown. Essentially the…
How do you find the center in K-means clustering? Essentially, the process goes as follows: Select k centroids. These will be the center point for…
Is Gaussian distribution uniform? Normal Distribution is a probability distribution where probability of x is highest at centre and lowest in the ends whereas in…
How do you interpret partial correlation? Partial correlation measures the strength of a relationship between two variables, while controlling for the effect of one or…
What is the wind speed for a tropical storm? Tropical Storm: A tropical cyclone in which the maximum sustained surface wind speed (using the U.S.…
How does sample size affect validity and reliability? Appropriate sample sizes are critical for reliable, reproducible, and valid results. Evidence generated from small sample sizes…
Does RMSE penalize outliers? In the case of RMSE, the presence of outliers can explode the error term to a very high value. But, in…
What is the 95% confidence interval for? What does a 95% confidence interval mean? The 95% confidence interval is a range of values that you…