Useful tips for everyday
How is linear regression used in machine learning? Linear Regression is a machine learning algorithm based on supervised learning. It performs a regression task. Regression…
What is a good correlation between stocks? A correlation coefficient of 1 indicates a perfect positive correlation between the prices of two stocks, meaning the…
How would you use a coefficient of variation? The most common use of the coefficient of variation is to assess the precision of a technique.…
What is the definition of independence in probability theory? Independence (probability theory) The concept of independence extends to dealing with collections of more than two…
Why is seed for random numbers set when splitting the data into training and testing datasets? Seeds allow you to create a starting point for…
What is ARIMA in time series? An autoregressive integrated moving average, or ARIMA, is a statistical analysis model that uses time series data to either…
Where should dirty or contaminated instruments be washed? Place in the sink. Wash/scrub all surfaces under water with a soft brush, remove stubborn staining by…
What is pre processing time? Preprocessing time: The time taken to construct an index. Query time: The time taken to process a query, assemble an…
How do you calculate the effect size for a two sample t-test? For the independent samples T-test, Cohen’s d is determined by calculating the mean…
How do you convert effect sizes? If the two groups have the same n, then the effect size is simply calculated by subtracting the means…