Quantile - Study guides, Class notes & Summaries

PST104F - Teaching Practice 1 Portfolio Assignment_50. Activity 1: Timetable  List two advantages of a school timetable. 1) It allows both learners and teachers to know the exact time and duration of each class period 2) It ensures that all subjects are equally studied and that there is order in the school  Is the school timetable at the school you are visiting functional? Yes  Give two reasons for your answer. 1) Learners know what subject teacher is supposed to attend them, as ...

GIS - Computerized systems designed for the storage, retrieval, and analysis of geographically referenced data. ArcGIS - Advanced analysis and geoprocessing tools Map layer - Collection of geographic objects that are alike Vector data - Collection of points, lines & polygons Raster data - Matrix of identical square cells, formed into a grid 1. GIS - Computerized systems designed for the storage, retrieval, and analysis of geographically referenced data. 2. ArcGIS - Advanced ana...

Data Analytics Exam (2023/24) | All Questions & Answers (Rated A+) Data Analytics Exam (2023/24) | All Questions & Answers (Rated A+) cross validation - ANSWER - you set the number of split datas and it picks the best one of those splits ordered type - ANSWER - specail type of categorical data where there is an order among variables i.e. credit score having an order of poor, average, good, and excellent purpose of descriptive statistics - ANSWER - to summarize and describe large amount...

ISYE6414 REGRESSION SUMMER MIDTERM 1 AND 2 EXAM / ISYE6414 MIDTERM 1 AND 2 REAL EXAM QUESTIONS AND 100% CORRECT ANSWERS/ GRADED A If the confidence interval for a regression coefficient contains the value zero, we interpret that the regression coefficient is definitely equal to zero. ---ANSWER-- False The larger the coefficient of determination or R-squared, the higher the variability explained by the simple linear regression model. ---ANSWER-- True The estimators of the error term va...

ISYE 6501 FINAL EXAM WITH COMPLETE SOLUTION 2022/2023 1. Factor Based Models: classification, clustering, regression. Implicitly assumed that we have a lot of factors in the final model 2. Why limit number of factors in a model? 2 reasons: overfitting: when # of factors is close to or larger than # of data points. Model may fit too closely to random effects simplicity: simple models are usually better 3. Classical variable selection approaches: 1. Forward selection 2. Backwards eli...

Normality Normality: Multiple regression assumes that the error terms are normally distributed. Plot QQ (Quantile-quantile) plots are used to visually check the normality of the data. • As all the points fall approximately along the straight line, we can assume normality. • R Syntax: qqnorm(model$residuals, pch = 1, frame = FALSE) plot(model$residuals) autoplot(model) Remark: autoplot requires installment of ggforify if(!require(devtools)) ges("devtools") devtools::install_git...

Logistic Regression - Commonly used for modeling binary response data. The response variable is a binary variable, and thus, not normally distributed. In logistic regression, we model the probability of a success, not the response variable. In this model, we do not have an error term g-function - We link the probability of success to the predicting variables using the g link function. The g function is the s-shape function that models the probability of success with respect to the predict...

ISYE 6501 Midterm 2 Part 1 Latest 2023 Rated A greedy algorithm at each step, the algorithm does the thing that looks best without taking future options into consideration; more classical variable selection methods stepwise - (forward, backward, combination) lasso elastic net available metrics for variable selection criteria p-value r2 AIC / BIC lasso Giving regression a budget to use on coefficients which it uses on most important coefficients Have to scale first elastic net constrain combi...

Understanding __________ statistics are very important to biomedical engineering. - answer-descriptive T/F: Only biomedical engineering use descriptive statistics. - answer-False, they could be used in many areas of study like mathematics and economics What are the four main questions? - answer-1) What do biomedical engineers do? 2)What makes biomedical engineering different than other fields of engineering? 3)What are the key fields of development in the world of biomedical engineering?...

GIS - Computerized systems designed for the storage, retrieval, and analysis of geographically referenced data. ArcGIS - Advanced analysis and geoprocessing tools Map layer - Collection of geographic objects that are alike Vector data - Collection of points, lines & polygons Raster data - Matrix of identical square cells, formed into a grid 1. GIS - Computerized systems designed for the storage, retrieval, and analysis of geographically referenced data. 2. ArcGIS - Advanced ana...