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Why does increasing the sample size lower the (sampling) variance? Big picture: I'm trying to understand how increasing the sample size increases the power of an experiment My lecturer's slides explain this with a picture of 2 normal distributions, one for the null-
Finding the fitted and predicted values for a statistical model Useful for telling if the model is "predictive" for each individual data point I want to look at any row id, and be able to compare the true fitted value and the predicted value in order to see how "correct" it is
How to calculate probability of winning from win rates? There is no ‘correct formula’ The chances that team A beat team B in particular match cannot be deduced from the long-run win rates of teams A and B Just think of all the factors that influence any sporting contest, and the different predictions and expectations made by fans and pundits The information that we have in real life about two teams - which is a lot more than their win rates
geometry - Probability of two people meeting - Cross Validated Problem: Two people are to arrive at the same location some time between 3pm and 4pm They both arrive at random times within the hour and only stay for ten minutes Since they only go one time, w
HBO Max | Learn how to create, edit, switch, and delete HBO Max profiles. For a more personalized experience, you can create up to 5 profiles for everyone in your household Profiles keep track of what you've watched and what you'd like to watch There are two types of profiles: Adult and Kids For info about Kids profiles, go to All about Kids profiles
Combining results of two samples to find combined standard deviation A recent study of home technologies reported the number of hours (to the nearest hour) of personal computer usage per week for a sample of 10 persons Excluded from the study were people who worked out of their home and used the computer as a part of their work